FR544603A - Compas à crayon - Google Patents

Compas à crayon

Info

Publication number: FR544603A
Authority: FR; France
Prior art keywords: compass; pencil; pencil compass
Prior art date: 1921-04-19
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

Inventor

Robert Cochran Dickson

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.)

1921-04-19

Filing date

1921-12-15

Publication date

1922-09-26

1921-12-15 Application filed filed Critical

1922-09-26 Application granted granted Critical

1922-09-26 Publication of FR544603A publication Critical patent/FR544603A/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
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/02—Compasses

FR544603D 1921-04-19 1921-12-15 Compas à crayon Expired FR544603A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NL19215A NL8469C (fr)	1921-04-19	1921-04-19
US527165A US1429848A (en)	1921-04-19	1922-01-05	Lead compass

Publications (1)

Publication Number	Publication Date
FR544603A true FR544603A (fr)	1922-09-26

Family

ID=24100363

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR544603D Expired FR544603A (fr)	1921-04-19	1921-12-15	Compas à crayon

Country Status (4)

Country	Link
US (1)	US1429848A (fr)
DE (1)	DE368250C (fr)
FR (1)	FR544603A (fr)
NL (1)	NL8469C (fr)

1921
- 1921-04-19 NL NL19215A patent/NL8469C/xx active
- 1921-12-08 DE DED40830D patent/DE368250C/de not_active Expired
- 1921-12-15 FR FR544603D patent/FR544603A/fr not_active Expired
1922
- 1922-01-05 US US527165A patent/US1429848A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
NL8469C (fr)	1923-04-16
US1429848A (en)	1922-09-19
DE368250C (de)	1923-02-02

Similar Documents

Publication	Publication Date	Title
FR547111A (fr)	1922-12-01	Perfectionnements aux compas gyroscopiques
FR678388A (fr)	1930-03-21	Perfectionnements aux compas
FR549082A (fr)	1923-02-01	Crayon porte-mine
FR544603A (fr)	1922-09-26	Compas à crayon
FR543913A (fr)	1922-09-12	Compas gyroscopique
FR536131A (fr)	1922-04-26	Crayon porte-mine
FR576098A (fr)	1924-08-11	Perfectionnements aux compas gyroscopiques
FR546877A (fr)	1922-11-25	Compas perfectionné gradué
FR524377A (fr)	1921-09-02	Compas
FR25400E (fr)	1923-03-06	Crayon à gaine
FR538516A (fr)	1922-06-10	Machine à tailler les crayons
FR584014A (fr)	1925-01-28	Perfectionnements apportés aux compas gyroscopiques
FR534572A (fr)	1922-03-29	Crayon perfectionné
FR586640A (fr)	1925-03-31	Compas de navigation
FR574499A (fr)	1924-07-11	Compas écolier
FR539159A (fr)	1922-06-22	Compas
FR531689A (fr)	1922-01-18	Crayon à gaine
FR661921A (fr)	1929-07-31	Perfectionnements aux compas gyroscopiques
FR585685A (fr)	1925-03-05	Compas de précision
FR541282A (fr)	1922-07-25	Crayon à mine coulissante
FR552915A (fr)	1923-05-09	Perfectionnements aux compas
FR541486A (fr)	1922-07-28	Règle-compas
FR630677A (fr)	1927-12-07	Perfectionnements apportés aux compas de navigation
FR628420A (fr)	1927-10-24	Perfectionnements aux compas gyroscopiques
FR619542A (fr)	1927-04-04	Règle compas