FR835906A - Perfectionnements aux appareils à dessiner - Google Patents

Perfectionnements aux appareils à dessiner

Info

Publication number: FR835906A
Authority: FR; France
Prior art keywords: drawing devices; devices
Prior art date: 1937-12-27
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)

Inventor

Charles-Henry Little

Charles-Hubbard Little

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.)

1937-12-27

Filing date

1938-03-30

Publication date

1939-01-05

1938-03-30 Application filed filed Critical

1939-01-05 Application granted granted Critical

1939-01-05 Publication of FR835906A publication Critical patent/FR835906A/fr

Status Expired legal-status Critical Current

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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/02—Draughting machines or drawing devices for keeping parallelism
- B43L13/04—Guides for rulers
- B43L13/06—Guides for rulers with pivoted guide rods

FR835906D 1937-12-27 1938-03-30 Perfectionnements aux appareils à dessiner Expired FR835906A (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US181790A US2228140A (en)	1937-12-27	1937-12-27	Drafting machine
GB9144/38A GB512876A (en)	1937-12-27	1938-03-25	Improvements relating to drafting machines
FR835906T		1938-03-30

Publications (1)

Publication Number	Publication Date
FR835906A true FR835906A (fr)	1939-01-05

Family

ID=9866227

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR835906D Expired FR835906A (fr)	1937-12-27	1938-03-30	Perfectionnements aux appareils à dessiner

Country Status (3)

Country	Link
US (1)	US2228140A (fr)
FR (1)	FR835906A (fr)
GB (1)	GB512876A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2552335A (en) *	1944-09-22	1951-05-08	Universal Drafting Machine Cor	Counterpoise mechanism for drafting machines
US2462271A (en) *	1944-09-22	1949-02-22	Little Charles Henry	Drafting machine
US2662291A (en) *	1947-05-03	1953-12-15	Universal Drafting Machine Cor	Drafting machine

1937
- 1937-12-27 US US181790A patent/US2228140A/en not_active Expired - Lifetime
1938
- 1938-03-25 GB GB9144/38A patent/GB512876A/en not_active Expired
- 1938-03-30 FR FR835906D patent/FR835906A/fr not_active Expired

Also Published As

Publication number	Publication date
US2228140A (en)	1941-01-07
GB512876A (en)	1939-09-27

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