CH111376A - Istrumento per tracciare elissi. - Google Patents

Istrumento per tracciare elissi.

Info

Publication number: CH111376A
Authority: CH; Switzerland
Prior art keywords: ellipses; plotting; instrument; plotting ellipses
Prior art date: 1924-04-23

Application number

Other languages

English (en)

Inventor

Zuliani Pietro

Original Assignee

Zuliani Pietro

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.)

1924-04-23

Filing date

1924-05-20

Publication date

1925-08-01

1924-05-20 Application filed by Zuliani Pietro filed Critical Zuliani Pietro

1925-08-01 Publication of CH111376A publication Critical patent/CH111376A/it

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
- B43L11/041—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses by means of a compass

CH111376D 1924-04-23 1924-05-20 Istrumento per tracciare elissi. CH111376A (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB1007324A GB225119A (en)	1924-04-23	1924-04-23	Improvements in instruments for drawing ellipses

Publications (1)

Publication Number	Publication Date
CH111376A true CH111376A (it)	1925-08-01

Family

ID=9960949

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH111376D CH111376A (it)	1924-04-23	1924-05-20	Istrumento per tracciare elissi.

Country Status (4)

Country	Link
CH (1)	CH111376A (it)
DE (1)	DE405804C (it)
FR (1)	FR552097A (it)
GB (1)	GB225119A (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4567662A (en) *	1983-08-30	1986-02-04	Peter Wallner	Device for drawing ellipses

1921
- 1921-08-02 DE DE1921Z0012505 patent/DE405804C/de not_active Expired
1922
- 1922-05-26 FR FR552097D patent/FR552097A/fr not_active Expired
1924
- 1924-04-23 GB GB1007324A patent/GB225119A/en not_active Expired
- 1924-05-20 CH CH111376D patent/CH111376A/it unknown

Also Published As

Publication number	Publication date
DE405804C (de)	1924-11-11
FR552097A (fr)	1923-04-23
GB225119A (en)	1924-11-27

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