CA438574A - Appareil a perforer - Google Patents

Appareil a perforer

Info

Publication number
CA438574A
CA438574A CA438574A CA438574DA CA438574A CA 438574 A CA438574 A CA 438574A CA 438574 A CA438574 A CA 438574A CA 438574D A CA438574D A CA 438574DA CA 438574 A CA438574 A CA 438574A
Authority
CA
Canada
Prior art keywords
perforating apparatus
perforating
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
CA438574A
Other languages
English (en)
Inventor
F. Wales 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
Publication date
Application granted granted Critical
Publication of CA438574A publication Critical patent/CA438574A/fr
Expired legal-status Critical Current

Links

CA438574A Appareil a perforer Expired CA438574A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA438574T

Publications (1)

Publication Number Publication Date
CA438574A true CA438574A (fr) 1946-12-17

Family

ID=35553808

Family Applications (1)

Application Number Title Priority Date Filing Date
CA438574A Expired CA438574A (fr) Appareil a perforer

Country Status (1)

Country Link
CA (1) CA438574A (fr)

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