FR1122309A - Perfectionnements relatifs au traitement de surfaces en vue d'y réduire l'adhérence ou l'attraction de particules - Google Patents

Perfectionnements relatifs au traitement de surfaces en vue d'y réduire l'adhérence ou l'attraction de particules

Info

Publication number
FR1122309A
FR1122309A FR1122309DA FR1122309A FR 1122309 A FR1122309 A FR 1122309A FR 1122309D A FR1122309D A FR 1122309DA FR 1122309 A FR1122309 A FR 1122309A
Authority
FR
France
Prior art keywords
attraction
particles
treatment
order
improvements relating
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.)
Expired
Application number
Other languages
English (en)
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.)
ALEXANDER SMITH Inc
Original Assignee
ALEXANDER SMITH Inc
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
Application filed by ALEXANDER SMITH Inc filed Critical ALEXANDER SMITH Inc
Application granted granted Critical
Publication of FR1122309A publication Critical patent/FR1122309A/fr
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/45—Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic Table; Aluminates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • D06M2101/08—Esters or ethers of cellulose
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D06M2101/12—Keratin fibres or silk
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34—Polyamides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2400/00—Specific information on the treatment or the process itself not provided in D06M23/00-D06M23/18
    • D06M2400/02—Treating compositions in the form of solgel or aerogel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/23921—With particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/23986—With coating, impregnation, or bond
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Paper (AREA)
FR1122309D 1955-02-04 1955-02-18 Perfectionnements relatifs au traitement de surfaces en vue d'y réduire l'adhérence ou l'attraction de particules Expired FR1122309A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3393/55A GB778738A (en) 1955-02-04 1955-02-04 Improvements in or relating to methods of reducing particle adherence of materials such as fabrics, paper, paint films and the like

Publications (1)

Publication Number Publication Date
FR1122309A true FR1122309A (fr) 1956-09-04

Family

ID=9757494

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1122309D Expired FR1122309A (fr) 1955-02-04 1955-02-18 Perfectionnements relatifs au traitement de surfaces en vue d'y réduire l'adhérence ou l'attraction de particules

Country Status (4)

Country Link
US (2) US2734834A (fr)
BE (1) BE535568A (fr)
FR (1) FR1122309A (fr)
GB (1) GB778738A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2578198A1 (fr) * 1984-01-25 1986-09-05 Koppers Co Inc Procede de desacidification de materiaux de bibliotheque, livres et papier portant des images a base de cellulose
EP0379581A4 (en) * 1988-06-23 1990-09-26 Kohjin Co., Ltd. Deodorant material and process for its production
FR3046419A1 (fr) * 2015-12-31 2017-07-07 Lisotherme Gel refrigerant ecologique

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877142A (en) * 1955-02-28 1959-03-10 Du Pont Process for increasing the soil resistance of a solid surface
US2885308A (en) * 1955-05-18 1959-05-05 Monsanto Chemicals Spinnable textile fibers treated with colloidal silica
US3002857A (en) * 1955-11-14 1961-10-03 Owens Corning Fiberglass Corp High temperature inorganic binder and products produced with same
US2909451A (en) * 1956-04-27 1959-10-20 American Cyanamid Co Process for preparing aluminum phosphate dispersion and process of treating pile fabric with the resulting dispersion
US2999774A (en) * 1956-05-31 1961-09-12 American Viscose Corp Production of soil-resistant material
US2928754A (en) * 1956-12-31 1960-03-15 American Viscose Corp Production of soil-resistant material
US2983625A (en) * 1957-02-20 1961-05-09 American Viscose Corp Treatment of silica coated fibers
US2914836A (en) * 1957-06-25 1959-12-01 Dow Corning Method of making synthetic pile fabrics
US2978349A (en) * 1957-07-03 1961-04-04 Eastern Prod Corp Soil proofing
US3219479A (en) * 1957-10-31 1965-11-23 Du Pont Synthetic nitrogenous textile coated with colloidal hydrous alumina
US3069292A (en) * 1958-07-16 1962-12-18 Du Pont Composition comprising particles of refractory oxide, coated with an oxide of a transition metal
US3013898A (en) * 1958-09-19 1961-12-19 Du Pont Coating painted surfaces with a silica sol
US3013903A (en) * 1959-04-13 1961-12-19 Du Pont Fibrous substrate with an alumina bonded organic polymer coating
US3013902A (en) * 1959-04-13 1961-12-19 Du Pont Organic polymer coated, alumina bonded fibrous base
US3033699A (en) * 1959-05-08 1962-05-08 Du Pont Antistatic composition
US3181966A (en) * 1960-04-22 1965-05-04 American Cyanamid Co Process for imparting soil retardance to the pile portion of a textile material
NL128477C (fr) * 1960-04-22
US3131087A (en) * 1960-07-13 1964-04-28 Paquet Max Process for the treatment of filaments, fibres, fabrics and carpets
US3112265A (en) * 1960-09-21 1963-11-26 American Cyanamid Co Preparation of dispersions containing hydrous aluminum oxide
US3149073A (en) * 1962-02-14 1964-09-15 American Cyanamid Co Preparation of dispersions containing hydrous aluminum oxide
US3330662A (en) * 1963-09-23 1967-07-11 Andrews Paper & Chem Co Inc Precoated sheet for use with a light sensitive reproduction coating
GB1092356A (en) * 1964-11-16 1967-11-22 Ici Ltd Treatment of carpets and pile fabrics
US3429647A (en) * 1965-01-06 1969-02-25 Monsanto Co Method of preventing jute staining
US3895164A (en) * 1971-11-24 1975-07-15 Key Chemicals Inc Process for imparting friction properties to a base material and the resultant product
US3901992A (en) * 1973-10-31 1975-08-26 Nalco Chemical Co Fabric for carpet and like materials containing a coating of colloidal silica with a layer of alumina
US3912841A (en) * 1973-10-31 1975-10-14 Nalco Chemical Co Synthetic bulk fabric treated with organically modified sio' 2 'aquasol
GB2037156B (en) * 1978-10-25 1984-09-19 Neubert R Method and mat for facilitating cleaning of floors
US4317859A (en) * 1979-03-27 1982-03-02 Monsanto Company Soil-resistant yarns
US4442139A (en) * 1979-12-11 1984-04-10 Raychem Corporation Elements comprising fibrous materials
US4429216A (en) 1979-12-11 1984-01-31 Raychem Corporation Conductive element
JPH01246469A (ja) * 1988-03-28 1989-10-02 J F Corp:Kk セラミックの含有繊維及びその製法
US5908663A (en) * 1996-02-01 1999-06-01 Minnesota Mining And Manufacturing Company Topical carpet treatment
ITFI20020052A1 (it) * 2002-03-28 2003-09-29 Consorzio Interuniversitario P Processo per la preparazione di nano - e micro-particelle di ossidi eidrossidi di metalli del secondo gruppo e di transizione, nano-e micro
US20050095933A1 (en) * 2003-11-03 2005-05-05 Kimbrell William C. Textile substrates, compositions useful for treating textile substrates, and related methods
US20070010150A1 (en) * 2005-07-11 2007-01-11 Xinggao Fang Textile materials exbiting enhanced soil-release properties and process for producing the same
US20070130694A1 (en) * 2005-12-12 2007-06-14 Michaels Emily W Textile surface modification composition
US7655609B2 (en) * 2005-12-12 2010-02-02 Milliken & Company Soil release agent
US20070131892A1 (en) * 2005-12-12 2007-06-14 Valenti Dominick J Stain repellant and release fabric conditioner
US20070199157A1 (en) * 2006-02-28 2007-08-30 Eduardo Torres Fabric conditioner enhancing agent and emulsion and dispersant stabilizer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB343121A (en) * 1929-11-06 1931-02-06 Camille Dreyfus Improvements in the treatment of materials made of or containing cellulose derivatives
US1983349A (en) * 1930-09-29 1934-12-04 Dreyfus Camille Textile material and method of making the same
BE386187A (fr) * 1931-01-01
US1850413A (en) * 1931-04-09 1932-03-22 Frederick L Porte Polishing cloth and process of making the same
US2085129A (en) * 1933-07-15 1937-06-29 Ig Farbenindustrie Ag Production of colloidal metal hydroxides
US2093454A (en) * 1934-10-01 1937-09-21 Samuel S Kistler Method of producing aerogels
BE434760A (fr) * 1938-06-07
US2587505A (en) * 1945-10-25 1952-02-26 Bigelow Sanford Carpet Co Pile fabric floor covering and pile yarn therefor made from cleaned and degreased wool sliver
US2570750A (en) * 1948-10-21 1951-10-09 Whitaker Co Fred Brashening of wool
US2622307A (en) * 1951-03-08 1952-12-23 Mohawk Carpet Mills Inc Soil-resistant pile fabric

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2578198A1 (fr) * 1984-01-25 1986-09-05 Koppers Co Inc Procede de desacidification de materiaux de bibliotheque, livres et papier portant des images a base de cellulose
EP0379581A4 (en) * 1988-06-23 1990-09-26 Kohjin Co., Ltd. Deodorant material and process for its production
FR3046419A1 (fr) * 2015-12-31 2017-07-07 Lisotherme Gel refrigerant ecologique

Also Published As

Publication number Publication date
BE535568A (fr) 1958-12-05
US2734834A (en) 1956-02-14
US2734835A (en) 1956-02-14
GB778738A (en) 1957-07-10

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