CA428217A - Appareil a perforer - Google Patents

Appareil a perforer

Info

Publication number
CA428217A
CA428217A CA428217A CA428217DA CA428217A CA 428217 A CA428217 A CA 428217A CA 428217 A CA428217 A CA 428217A CA 428217D A CA428217D A CA 428217DA CA 428217 A CA428217 A CA 428217A
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
CA428217A
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 CA428217A publication Critical patent/CA428217A/fr
Expired legal-status Critical Current

Links

CA428217A Appareil a perforer Expired CA428217A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA428217T

Publications (1)

Publication Number Publication Date
CA428217A true CA428217A (fr) 1945-06-19

Family

ID=35543195

Family Applications (1)

Application Number Title Priority Date Filing Date
CA428217A Expired CA428217A (fr) Appareil a perforer

Country Status (1)

Country Link
CA (1) CA428217A (fr)

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