FR852657A - Self-balancing draftsman remaining in balance regardless of the inclination of the drawing board - Google Patents

Self-balancing draftsman remaining in balance regardless of the inclination of the drawing board

Info

Publication number
FR852657A
FR852657A FR852657DA FR852657A FR 852657 A FR852657 A FR 852657A FR 852657D A FR852657D A FR 852657DA FR 852657 A FR852657 A FR 852657A
Authority
FR
France
Prior art keywords
draftsman
balancing
inclination
self
remaining
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IT POLITECNICA IND SOC
Original Assignee
IT POLITECNICA IND SOC
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 by IT POLITECNICA IND SOC filed Critical IT POLITECNICA IND SOC
Application granted granted Critical
Publication of FR852657A publication Critical patent/FR852657A/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
FR852657D 1938-04-16 1939-04-06 Self-balancing draftsman remaining in balance regardless of the inclination of the drawing board Expired FR852657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT527597X 1938-04-16

Publications (1)

Publication Number Publication Date
FR852657A true FR852657A (en) 1940-02-29

Family

ID=11277503

Family Applications (1)

Application Number Title Priority Date Filing Date
FR852657D Expired FR852657A (en) 1938-04-16 1939-04-06 Self-balancing draftsman remaining in balance regardless of the inclination of the drawing board

Country Status (2)

Country Link
FR (1) FR852657A (en)
GB (1) GB527597A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429132A (en) * 1944-09-22 1947-10-14 Little Charles Henry Counterweighted parallel motion arm
US2667694A (en) * 1949-12-27 1954-02-02 Daniel J Mcquaid Perspective drawing machine

Also Published As

Publication number Publication date
GB527597A (en) 1940-10-11

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