CA472814A - Appareils de dessins - Google Patents

Appareils de dessins

Info

Publication number
CA472814A
CA472814A CA472814A CA472814DA CA472814A CA 472814 A CA472814 A CA 472814A CA 472814 A CA472814 A CA 472814A CA 472814D A CA472814D A CA 472814DA CA 472814 A CA472814 A CA 472814A
Authority
CA
Canada
Prior art keywords
drawing appliances
appliances
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
CA472814A
Other languages
English (en)
Inventor
Mark Moore Donovan
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.)
ISOMETRIC PROJECTIONS Ltd
Original Assignee
ISOMETRIC PROJECTIONS Ltd
Publication date
Application granted granted Critical
Publication of CA472814A publication Critical patent/CA472814A/fr
Expired legal-status Critical Current

Links

CA472814A Appareils de dessins Expired CA472814A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA472814T

Publications (1)

Publication Number Publication Date
CA472814A true CA472814A (fr) 1951-04-10

Family

ID=35606777

Family Applications (1)

Application Number Title Priority Date Filing Date
CA472814A Expired CA472814A (fr) Appareils de dessins

Country Status (1)

Country Link
CA (1) CA472814A (fr)

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