FR835906A - Improvements to drawing devices - Google Patents

Improvements to drawing devices

Info

Publication number
FR835906A
FR835906A FR835906DA FR835906A FR 835906 A FR835906 A FR 835906A FR 835906D A FR835906D A FR 835906DA FR 835906 A FR835906 A FR 835906A
Authority
FR
France
Prior art keywords
drawing devices
devices
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
French (fr)
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.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR835906A publication Critical patent/FR835906A/en
Expired legal-status Critical Current

Links

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 Improvements to drawing devices Expired FR835906A (en)

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 (en) 1939-01-05

Family

ID=9866227

Family Applications (1)

Application Number Title Priority Date Filing Date
FR835906D Expired FR835906A (en) 1937-12-27 1938-03-30 Improvements to drawing devices

Country Status (3)

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

Families Citing this family (3)

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

Also Published As

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

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