FR553412A - Improvements to rod compasses - Google Patents

Improvements to rod compasses

Info

Publication number
FR553412A
FR553412A FR553412DA FR553412A FR 553412 A FR553412 A FR 553412A FR 553412D A FR553412D A FR 553412DA FR 553412 A FR553412 A FR 553412A
Authority
FR
France
Prior art keywords
compasses
rod
rod compasses
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
James Joseph Mc Donald
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 FR553412A publication Critical patent/FR553412A/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
    • B43L9/00—Circular curve-drawing or like instruments
    • B43L9/02—Compasses
    • B43L9/04—Beam compasses
FR553412D 1920-11-17 1922-06-28 Improvements to rod compasses Expired FR553412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US424651A US1427376A (en) 1920-11-17 1920-11-17 Trammel point

Publications (1)

Publication Number Publication Date
FR553412A true FR553412A (en) 1923-05-24

Family

ID=10074371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR553412D Expired FR553412A (en) 1920-11-17 1922-06-28 Improvements to rod compasses

Country Status (3)

Country Link
US (1) US1427376A (en)
FR (1) FR553412A (en)
GB (1) GB199248A (en)

Also Published As

Publication number Publication date
GB199248A (en) 1923-06-21
US1427376A (en) 1922-08-29

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