CA453510A - Instrument de dessin - Google Patents

Instrument de dessin

Info

Publication number
CA453510A
CA453510A CA453510A CA453510DA CA453510A CA 453510 A CA453510 A CA 453510A CA 453510 A CA453510 A CA 453510A CA 453510D A CA453510D A CA 453510DA CA 453510 A CA453510 A CA 453510A
Authority
CA
Canada
Prior art keywords
drawing appliance
appliance
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
CA453510A
Other languages
English (en)
Inventor
George Williams Arthur
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 CA453510A publication Critical patent/CA453510A/fr
Expired legal-status Critical Current

Links

CA453510A Instrument de dessin Expired CA453510A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA453510T

Publications (1)

Publication Number Publication Date
CA453510A true CA453510A (fr) 1948-12-21

Family

ID=35571241

Family Applications (1)

Application Number Title Priority Date Filing Date
CA453510A Expired CA453510A (fr) Instrument de dessin

Country Status (1)

Country Link
CA (1) CA453510A (fr)

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