CA437412A - Appareil a perforer - Google Patents

Appareil a perforer

Info

Publication number
CA437412A
CA437412A CA437412A CA437412DA CA437412A CA 437412 A CA437412 A CA 437412A CA 437412 A CA437412 A CA 437412A CA 437412D A CA437412D A CA 437412DA CA 437412 A CA437412 A CA 437412A
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
CA437412A
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 CA437412A publication Critical patent/CA437412A/fr
Expired legal-status Critical Current

Links

CA437412A Appareil a perforer Expired CA437412A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA437412T

Publications (1)

Publication Number Publication Date
CA437412A true CA437412A (fr) 1946-10-15

Family

ID=35552647

Family Applications (1)

Application Number Title Priority Date Filing Date
CA437412A Expired CA437412A (fr) Appareil a perforer

Country Status (1)

Country Link
CA (1) CA437412A (fr)

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