CA470073A - Mathematical drawing instruments - Google Patents

Mathematical drawing instruments

Info

Publication number
CA470073A
CA470073A CA470073A CA470073DA CA470073A CA 470073 A CA470073 A CA 470073A CA 470073 A CA470073 A CA 470073A CA 470073D A CA470073D A CA 470073DA CA 470073 A CA470073 A CA 470073A
Authority
CA
Canada
Prior art keywords
drawing instruments
mathematical drawing
mathematical
instruments
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
CA470073A
Other languages
French (fr)
Inventor
Sosthene Liber Henri
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.)
Civile D'etudes Et Inventions Liber (seilib) Ste
Original Assignee
Civile D'etudes Et Inventions Liber (seilib) Ste
Publication date
Application granted granted Critical
Publication of CA470073A publication Critical patent/CA470073A/en
Expired legal-status Critical Current

Links

CA470073A Mathematical drawing instruments Expired CA470073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA470073T

Publications (1)

Publication Number Publication Date
CA470073A true CA470073A (en) 1950-12-12

Family

ID=35604013

Family Applications (1)

Application Number Title Priority Date Filing Date
CA470073A Expired CA470073A (en) Mathematical drawing instruments

Country Status (1)

Country Link
CA (1) CA470073A (en)

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