US20050146193A1 - Structure of an improved chair - Google Patents

Structure of an improved chair Download PDF

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Publication number
US20050146193A1
US20050146193A1 US10/747,100 US74710003A US2005146193A1 US 20050146193 A1 US20050146193 A1 US 20050146193A1 US 74710003 A US74710003 A US 74710003A US 2005146193 A1 US2005146193 A1 US 2005146193A1
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US
United States
Prior art keywords
edge
chair
bar
bars
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/747,100
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English (en)
Inventor
Chung-Li Shieh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP03028255A priority Critical patent/EP1541059A1/fr
Application filed by Individual filed Critical Individual
Priority to US10/747,100 priority patent/US20050146193A1/en
Publication of US20050146193A1 publication Critical patent/US20050146193A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/04—Metal chairs, e.g. tubular
    • A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means
    • A47C31/023—Upholstery attaching means connecting upholstery to frames, e.g. by hooks, clips, snap fasteners, clamping means or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/16—Seats made of wooden, plastics, or metal sheet material; Panel seats

Definitions

  • the present invention relates to a structure of an improved chair, particularly to a structure of an improved chair by bending inward the asymmetric edge of the metal-plate to form a fit-rim and then fit the fit-rim into the U-shape fixing slit of the edge-bar having an extended part.
  • FIG. 7 (A) and FIG. 8 (A) The conventional chair 5 with the metal-net frame, as shown in FIG. 7 (A) and FIG. 8 (A), wherein a metal-net frame 51 is formed by processing a metal material using a stamping die on a press. And the metal-net frame 51 is welded on the chair 5 using the high-frequency oscillation energy of ultrasonic, as shown in FIG. 7 (B). Alternatively, the metal-net frame 51 is fixed on the chair 5 by bending inward the asymmetric edge 52 of the metal-net 51 and then fixing asymmetric edge 52 on the chair 5 by welding on the inside of the chair 5 frame with welding material 53 , as shown in FIG. 8 (B).
  • the objective of the present invention is to provide a structure of an improved chair, which provides a U-type fixing slit between the extended part of the edge-bar and the principal part which can facilitate fast fitting the metal-plate and welding the metal-plate on the chair-seat firmly with 3-5 welding spots along each side.
  • the another objective of the present invention is to provide a structure of an improved chair which can reduce the usage of the welding material and can reduce the time and cost of welding.
  • the still another objective of the present invention is to provide an operating environment which the environmental pollution can be reduced, the environmental cleanness can be increased, and the temperature can be lower.
  • the still another of the present invention is to provide a structure of an improved chair which the working hour for grinding, milling, and polishing and the grinding media can be reduced.
  • the still another objective of the present invention is to enhance the beauty of the chair and to provide a safe chair that can hide the asymmetric edge after the metal-net frame is cut, wherein by welding the extended part, fit-rim and the principal part together via the holes of the edge-bar, and welding with several welding spots to join the extended part, fit-rim and the principal part together, and then fast polishing the welding material on the holes.
  • the structure of an improved chair can achieve the above-mentioned objectives of the present invention, comprising:
  • a chair the chair composed of tube or prism as the principal holder has front-legs, rear-legs, arm-rests and an extended-bar. There is a fix spot on each front-leg. The fix spot is used to fix the set of the edge-bar of the chair-seat or the extended-bar.
  • a set of edge-bars of chair-back is composed of one upper edge-bar, one lower edge-bar and two side edge-bars by fixing both ends of the upper and lower edge-bars on the rear-legs of the chair.
  • a set of edge-bars of the chair-seat is composed of one front edge-bar, one rear edge-bar and two side edge-bars by fixing the two side edge-bars on the fix spot of the front-leg or by placing two side edge-bars on the extended-bar of the front-legs and fixing the side edge-bars on the front-leg and fixing both ends of the rear edge-bar on the rear-leg.
  • Two metal-plates is die-cast, there are several fit-rims on the metal-plate, the fit-rim matches the frame formed by the edge-bars surround the four sides of the metal-plate and bends inward and is used for fitting into the U-shape fixing slit of each edge-bar.
  • the edge-bar having a principal part and an extended part is die-cast, there is a U-shape fixing slit between the extended part and the principal part, and the extended part has several holes. After the fit-rim of the metal-plate fitted into the U-shape fixing slit, the edge-bars and the metal-plate can be welded or riveted at the several holes of the extended part into a unified connector, which is unable to be dismantled.
  • FIG. 1 is the stereo schematic diagram of a structure of an improved chair according to the present invention
  • FIG. 2 is the stereo schematic diagram of the chair
  • FIG. 3 is the stereo schematic diagram of the metal-plate
  • FIG. 4 is the enlarged stereo schematic diagram of the A perspective view
  • FIG. 5 (A) ⁇ (F) is the sectional view of the edge-bar of the structure of an improved chair according to the present invention.
  • FIG. 6 (A) is the sectional view of the first embodiment of the present invention wherein the bended inward fit-rim of the metal-plate is fitted into the U-shape fixing slit;
  • FIG. 6 (B) is the sectional view of the second embodiment of the present invention wherein the bended inward fit-rim of the metal-plate is fitted into the U-shape fixing slit;
  • FIG. 7 (A) and FIG. 8 (A) is the stereo schematic diagram of the conventional metal-net frame seat
  • FIG. 8 (B) is the enlarged stereo schematic diagram of the B perspective view.
  • FIG. 8 (B) is the enlarged stereo schematic diagram of the C perspective view.
  • the structure of an improved chair according to the present invention provides primarily comprising:
  • a chair 1 the chair 1 composed of tube or prism as the principal holder has front-legs 11 , rear-legs 12 , arm-rests 13 and an extended-bar 14 .
  • the fix spot 111 is used to fix the set of the edge-bar 2 of the chair-seat or the extended-bar 14 .
  • a set of edge-bars 2 of chair-back is composed of one upper edge-bar 2 , one lower edge-bar 2 and two side edge-bars 2 by fixing both ends of the upper and lower edge-bars 2 on the rear-legs 12 of the chair.
  • a set of edge-bars 2 of the chair-seat is composed of one front edge-bar 2 , one rear edge-bar 2 and two side edge-bars 2 by fixing the two side edge-bars 2 on the fix spot 111 of the front-leg or by placing two side edge-bars 2 on the extended-bar 14 of the front-legs 11 and fixing the side edge-bars 2 on the front-leg 11 and fixing both ends of the rear edge-bar 2 on the rear-leg 12 .
  • Two metal-plates 3 is die-cast, there are several fit-rims 31 on the metal-plate 3 , the fit-rim 31 matches the frame formed by the edge-bars 2 surround the four sides of the metal-plate 3 and bends inward and is used for fitting into the U-shape fixing slit 23 of each edge-bar 2 .
  • the edge-bar having a principal part and an extended part is die-cast, there is a U-shape fixing slit between the extended part and the principal part, and the extended part has several holes. After the fit-rim of the metal-plate fitted into the U-shape fixing slit, the edge-bars and the metal-plate can be welded or riveted at the several holes of the extended part into a unified connector, which is unable to be dismantled.
  • the side-bar 2 is extruded die-cast and has a principal part 21 and an extended part 22 , and there is a U-shape fixing slit 23 between the extended part 22 and the principal part 21 , and the bended inward fit-rim 31 of the metal-plate 3 can be just fitted into the U-shape fixing slit 23 of the side-bar 2 , and the frame formed by the edge-bars 2 just surround the four sides of the metal-plate 3 , and at the holes 24 opened along the extended part 22 of the edge-bar 2 (as shown in FIG. 6 (A)), using welding and riveting to join the extended part 22 of the edge-bar 2 , the fit-rim of the metal-plate 3 , and the principal part 21 of the edge-bar 2 into an connector which is unable to be dismantled.
  • the fixed set of edge-bars of the chair-back and the fixed set of edge-bars of the chair-seat is fixed on the front-leg 11 , the rear-leg 12 and arm-rest 13 ;
  • the set of edge-bars of the chair-back is assembled by fixing the ends of the upper edge-bar 2 and the lower edge-bar 2 on the rear-leg 12 ;
  • the set of edge-bars of the chair-seat is assembled by fixing the two side edge-bars on the fix spot 111 of the front-leg 11 or by placing two side edge-bars 2 on the extended-bar 14 of the front-legs 11 and fixing both ends of the rear edge-bars on the rear-leg 12 and fixing both ends of the arm-rest 13 on the front-leg 11 and the rear-leg 12 .
  • the welding material on the holes 24 of the extended part 22 can be polished, and thus the beauty of the chair 1 can be enhanced due to there is no welded spot or welded mark. More, a safe structure of an improved chair can be formed while the chair 1 is painted with powder to hide the asymmetric edge 52 of the cut metal-net frame in the edge-bar 2 .
  • the structure of an improved chair according to the present invention has the following advantages:
  • those edge-bars can be fast welded on the chair-seat section and chair-back section according to the shape of the seat section and the back section during processing.
  • the chair-seat section and the chair-back section of the chair can not only possess the capability for supporting weight but also further enhance the safety and the beauty of the chair.
  • the present invention also is a structure of a safe chair, wherein the extended part, fit-rim and the principal part is welded together via the holes of the edge-bars, and the extended part, the fit-rim and the principal part is joined together by several welding spots, and the welding material on holes can be polished fast, and thus the beauty of the chain can be enhanced and the asymmetric edge of the metal-net frame cut during processing can be hidden.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
US10/747,100 2003-12-09 2003-12-30 Structure of an improved chair Abandoned US20050146193A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03028255A EP1541059A1 (fr) 2003-12-09 2003-12-09 Structure d'une chaise améliorée
US10/747,100 US20050146193A1 (en) 2003-12-09 2003-12-30 Structure of an improved chair

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03028255A EP1541059A1 (fr) 2003-12-09 2003-12-09 Structure d'une chaise améliorée
US10/747,100 US20050146193A1 (en) 2003-12-09 2003-12-30 Structure of an improved chair

Publications (1)

Publication Number Publication Date
US20050146193A1 true US20050146193A1 (en) 2005-07-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US10/747,100 Abandoned US20050146193A1 (en) 2003-12-09 2003-12-30 Structure of an improved chair

Country Status (2)

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US (1) US20050146193A1 (fr)
EP (1) EP1541059A1 (fr)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070024102A1 (en) * 2005-07-29 2007-02-01 Oliver Wang Single frame sling chair
US20090045667A1 (en) * 2005-07-29 2009-02-19 Oliver Wang Single frame sling chair
US20100156151A1 (en) * 2008-12-24 2010-06-24 Smith Richard D Folding mesh chair with nesting hoops
US20100270843A1 (en) * 2005-07-29 2010-10-28 Oliver Wang Single frame sling chair
USD648554S1 (en) 2009-11-04 2011-11-15 Mity-Lite, Inc. Mesh stacking chair
US20120025574A1 (en) * 2008-12-12 2012-02-02 Formway Furniture Limited Chair, a support, and components
USD660612S1 (en) 2010-11-16 2012-05-29 Mity-Lite, Inc. Mesh banquet chair
US8317269B2 (en) 2008-12-24 2012-11-27 Mity-Lite, Inc. Mesh stacking chair
US8322787B2 (en) 2008-12-24 2012-12-04 Mity-Lite, Inc. Clamping joint for a chair
US8454093B2 (en) 2008-12-24 2013-06-04 Mity-Lite, Inc. Mesh chair with open-end hoop
USD766004S1 (en) * 2015-06-18 2016-09-13 Nardi Spa Chair
USD818286S1 (en) * 2016-06-17 2018-05-22 Nardi S.P.A. Chair
USD840703S1 (en) * 2017-03-24 2019-02-19 Nardi S.P.A. Bench with backrest
CN110169667A (zh) * 2019-04-27 2019-08-27 临海市创宇工艺有限公司 一种藤椅的加工工艺
USD869890S1 (en) 2017-12-05 2019-12-17 Steelcase Inc. Chairback
USD869872S1 (en) 2017-12-05 2019-12-17 Steelcase Inc. Chair
USD869889S1 (en) 2017-12-05 2019-12-17 Steelcase Inc. Chairback
USD870479S1 (en) 2017-12-05 2019-12-24 Steelcase Inc. Chair
USD881597S1 (en) * 2018-07-12 2020-04-21 Gloster Furniture Limited Lounge chair
USD882284S1 (en) * 2018-07-12 2020-04-28 Gloster Furniture Limited Sofa
USD887742S1 (en) * 2018-07-12 2020-06-23 Gloster Furniture Limited Chair
US10813463B2 (en) 2017-12-05 2020-10-27 Steelcase Inc. Compliant backrest
USD907383S1 (en) 2019-05-31 2021-01-12 Steelcase Inc. Chair with upholstered back
USD907935S1 (en) 2019-05-31 2021-01-19 Steelcase Inc. Chair
US11291305B2 (en) 2017-12-05 2022-04-05 Steelcase Inc. Compliant backrest
USD968115S1 (en) * 2021-06-18 2022-11-01 Sophia & William Brands Co. Ltd Chair
USD974067S1 (en) * 2022-05-18 2023-01-03 Nanjing Sileqi Electronic Commerce Co., Ltd Chair
USD982341S1 (en) * 2020-11-30 2023-04-04 Zhejiang Linyaco., Ltd Chair
USD983545S1 (en) * 2021-04-01 2023-04-18 Sophia & William Brands Co. Ltd Rattan sofa
USD983547S1 (en) * 2021-04-01 2023-04-18 Sophia & William Brands Co. Ltd Rattan sofa
USD983548S1 (en) * 2021-04-01 2023-04-18 Sophia & William Brands Co. Ltd Rattan chair
USD983546S1 (en) * 2021-04-01 2023-04-18 Sophia & William Brands Co. Ltd Rattan chair

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103801672A (zh) * 2014-01-24 2014-05-21 涂兴家 一种压铸家具制作工艺
CN205457415U (zh) * 2016-03-11 2016-08-17 浙江永强集团股份有限公司 一种椅子

Citations (11)

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US662647A (en) * 1900-05-21 1900-11-27 Martin V B Howe Chair-seat.
US2731076A (en) * 1952-02-25 1956-01-17 David L Rowland Furniture seating
US3024068A (en) * 1959-04-08 1962-03-06 Miller Herman Inc Demountable furniture web construction
US3041109A (en) * 1958-09-29 1962-06-26 Miller Herman Inc Web and spreader furniture construction
US3114575A (en) * 1961-10-02 1963-12-17 Miller Herman Inc Seating
US3175269A (en) * 1962-09-26 1965-03-30 Scroll Inc Strap end grip
US3667532A (en) * 1969-06-27 1972-06-06 Kurz Gmbh Piece of furniture
US3843477A (en) * 1971-03-22 1974-10-22 D Rowland Arcuate wire assembly coated with plastic
US3844612A (en) * 1972-03-14 1974-10-29 K Borggren Arrangement in seating furniture or seats for attaching seat and back supporting elements
US4062590A (en) * 1976-05-24 1977-12-13 Fixtures Manufacturing Corporation Chair structure
US6523904B1 (en) * 1999-11-17 2003-02-25 Telescope Casual Furniture, Inc. Outdoor furniture construction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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US1996479A (en) * 1931-12-12 1935-04-02 David A Mccowan Chair seat
US4522444A (en) * 1982-09-15 1985-06-11 Charles Pollock Stacking chair
DE29800168U1 (de) * 1998-01-08 1998-04-09 Eisen- Und Drahtwerk Erlau Ag, 73431 Aalen Möbel

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US662647A (en) * 1900-05-21 1900-11-27 Martin V B Howe Chair-seat.
US2731076A (en) * 1952-02-25 1956-01-17 David L Rowland Furniture seating
US3041109A (en) * 1958-09-29 1962-06-26 Miller Herman Inc Web and spreader furniture construction
US3024068A (en) * 1959-04-08 1962-03-06 Miller Herman Inc Demountable furniture web construction
US3114575A (en) * 1961-10-02 1963-12-17 Miller Herman Inc Seating
US3175269A (en) * 1962-09-26 1965-03-30 Scroll Inc Strap end grip
US3667532A (en) * 1969-06-27 1972-06-06 Kurz Gmbh Piece of furniture
US3843477A (en) * 1971-03-22 1974-10-22 D Rowland Arcuate wire assembly coated with plastic
US3844612A (en) * 1972-03-14 1974-10-29 K Borggren Arrangement in seating furniture or seats for attaching seat and back supporting elements
US4062590A (en) * 1976-05-24 1977-12-13 Fixtures Manufacturing Corporation Chair structure
US6523904B1 (en) * 1999-11-17 2003-02-25 Telescope Casual Furniture, Inc. Outdoor furniture construction

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070024102A1 (en) * 2005-07-29 2007-02-01 Oliver Wang Single frame sling chair
US7458641B2 (en) 2005-07-29 2008-12-02 Agio International Company, Limited Single frame sling chair
US20090045667A1 (en) * 2005-07-29 2009-02-19 Oliver Wang Single frame sling chair
US7731291B2 (en) 2005-07-29 2010-06-08 Agio International Company Limited Single frame sling chair
US8403421B2 (en) 2005-07-29 2013-03-26 Agio International Company, Ltd. Single frame sling chair
US20100270843A1 (en) * 2005-07-29 2010-10-28 Oliver Wang Single frame sling chair
US20120025574A1 (en) * 2008-12-12 2012-02-02 Formway Furniture Limited Chair, a support, and components
US9033421B2 (en) * 2008-12-12 2015-05-19 Formway Furniture Limited Chair, a support, and components
US9622579B2 (en) 2008-12-12 2017-04-18 Formway Furniture Limited Chair, a support, and components
US8029059B2 (en) * 2008-12-24 2011-10-04 Mity-Lite, Inc. Folding and stacking mesh chair system
US8033598B2 (en) 2008-12-24 2011-10-11 Mity-Lite, Inc. Mesh folding chair
US8317269B2 (en) 2008-12-24 2012-11-27 Mity-Lite, Inc. Mesh stacking chair
US8322787B2 (en) 2008-12-24 2012-12-04 Mity-Lite, Inc. Clamping joint for a chair
US20100156151A1 (en) * 2008-12-24 2010-06-24 Smith Richard D Folding mesh chair with nesting hoops
US8454093B2 (en) 2008-12-24 2013-06-04 Mity-Lite, Inc. Mesh chair with open-end hoop
US9492014B1 (en) 2008-12-24 2016-11-15 Mity-Lite, Inc. Mesh folding chair
US8038221B2 (en) 2008-12-24 2011-10-18 Mity-Lite, Inc. Folding mesh chair with nesting hoops
USD648554S1 (en) 2009-11-04 2011-11-15 Mity-Lite, Inc. Mesh stacking chair
USD660612S1 (en) 2010-11-16 2012-05-29 Mity-Lite, Inc. Mesh banquet chair
USD766004S1 (en) * 2015-06-18 2016-09-13 Nardi Spa Chair
USD818286S1 (en) * 2016-06-17 2018-05-22 Nardi S.P.A. Chair
USD840703S1 (en) * 2017-03-24 2019-02-19 Nardi S.P.A. Bench with backrest
USD869872S1 (en) 2017-12-05 2019-12-17 Steelcase Inc. Chair
USD921409S1 (en) 2017-12-05 2021-06-08 Steelcase Inc. Chair
US12004660B2 (en) 2017-12-05 2024-06-11 Steelcase Inc. Compliant backrest
USD869889S1 (en) 2017-12-05 2019-12-17 Steelcase Inc. Chairback
USD870479S1 (en) 2017-12-05 2019-12-24 Steelcase Inc. Chair
US11819139B2 (en) 2017-12-05 2023-11-21 Steelcase Inc. Compliant backrest
US11583092B2 (en) 2017-12-05 2023-02-21 Steelcase Inc. Compliant backrest
USD869890S1 (en) 2017-12-05 2019-12-17 Steelcase Inc. Chairback
US10813463B2 (en) 2017-12-05 2020-10-27 Steelcase Inc. Compliant backrest
US11291305B2 (en) 2017-12-05 2022-04-05 Steelcase Inc. Compliant backrest
USD921410S1 (en) 2017-12-05 2021-06-08 Steelcase Inc. Chair
USD887742S1 (en) * 2018-07-12 2020-06-23 Gloster Furniture Limited Chair
USD882284S1 (en) * 2018-07-12 2020-04-28 Gloster Furniture Limited Sofa
USD881597S1 (en) * 2018-07-12 2020-04-21 Gloster Furniture Limited Lounge chair
CN110169667A (zh) * 2019-04-27 2019-08-27 临海市创宇工艺有限公司 一种藤椅的加工工艺
USD947559S1 (en) 2019-05-31 2022-04-05 Steelcase Inc. Chair with upholstered back
USD907935S1 (en) 2019-05-31 2021-01-19 Steelcase Inc. Chair
USD947560S1 (en) 2019-05-31 2022-04-05 Steelcase Inc. Chair
USD907383S1 (en) 2019-05-31 2021-01-12 Steelcase Inc. Chair with upholstered back
USD982341S1 (en) * 2020-11-30 2023-04-04 Zhejiang Linyaco., Ltd Chair
USD983545S1 (en) * 2021-04-01 2023-04-18 Sophia & William Brands Co. Ltd Rattan sofa
USD983547S1 (en) * 2021-04-01 2023-04-18 Sophia & William Brands Co. Ltd Rattan sofa
USD983548S1 (en) * 2021-04-01 2023-04-18 Sophia & William Brands Co. Ltd Rattan chair
USD983546S1 (en) * 2021-04-01 2023-04-18 Sophia & William Brands Co. Ltd Rattan chair
USD968115S1 (en) * 2021-06-18 2022-11-01 Sophia & William Brands Co. Ltd Chair
USD974067S1 (en) * 2022-05-18 2023-01-03 Nanjing Sileqi Electronic Commerce Co., Ltd Chair

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