CA859383A - Drafting device - Google Patents

Drafting device

Info

Publication number
CA859383A
CA859383A CA859383A CA859383DA CA859383A CA 859383 A CA859383 A CA 859383A CA 859383 A CA859383 A CA 859383A CA 859383D A CA859383D A CA 859383DA CA 859383 A CA859383 A CA 859383A
Authority
CA
Canada
Prior art keywords
drafting device
drafting
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
CA859383A
Inventor
J. Gillespie Norman
A. Scroggie George
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA859383A publication Critical patent/CA859383A/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
    • B43L13/14—Devices for drawing in perspective
    • B43L13/16—Devices for drawing in perspective free-hand
    • B43L13/18—Devices for drawing in perspective free-hand having optical or projecting equipment
CA859383A 1970-05-15 1970-05-15 Drafting device Expired CA859383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA82846 1970-05-15

Publications (1)

Publication Number Publication Date
CA859383A true CA859383A (en) 1970-12-29

Family

ID=4086802

Family Applications (1)

Application Number Title Priority Date Filing Date
CA859383A Expired CA859383A (en) 1970-05-15 1970-05-15 Drafting device

Country Status (4)

Country Link
JP (1) JPS5133007B1 (en)
CA (1) CA859383A (en)
FR (1) FR2091213A5 (en)
SE (1) SE360181B (en)

Also Published As

Publication number Publication date
JPS5133007B1 (en) 1976-09-17
FR2091213A5 (en) 1972-01-14
DE2122285A1 (en) 1971-11-25
SE360181B (en) 1973-09-17
DE2122285B2 (en) 1976-10-28

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