FR672568A - Improvements to geometric tracing devices - Google Patents

Improvements to geometric tracing devices

Info

Publication number
FR672568A
FR672568A FR672568DA FR672568A FR 672568 A FR672568 A FR 672568A FR 672568D A FR672568D A FR 672568DA FR 672568 A FR672568 A FR 672568A
Authority
FR
France
Prior art keywords
geometric
tracing devices
tracing
devices
geometric tracing
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
Alexander Douglas Fisher
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 FR672568A publication Critical patent/FR672568A/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
    • B43L11/00—Non-circular-curve-drawing instruments
FR672568D 1928-01-08 1928-12-31 Improvements to geometric tracing devices Expired FR672568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA672568X 1928-01-08

Publications (1)

Publication Number Publication Date
FR672568A true FR672568A (en) 1929-12-30

Family

ID=4172134

Family Applications (1)

Application Number Title Priority Date Filing Date
FR672568D Expired FR672568A (en) 1928-01-08 1928-12-31 Improvements to geometric tracing devices

Country Status (1)

Country Link
FR (1) FR672568A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2324469A1 (en) * 1973-06-20 1977-04-15 Kishi Yoshihiro Multiple pattern tracing equipment - has bar coupled to rotary component by swivel connection engaging hole and pencil marking paper on rotary table

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2324469A1 (en) * 1973-06-20 1977-04-15 Kishi Yoshihiro Multiple pattern tracing equipment - has bar coupled to rotary component by swivel connection engaging hole and pencil marking paper on rotary table

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