CA430532A - Appareil a perforer - Google Patents

Appareil a perforer

Info

Publication number
CA430532A
CA430532A CA430532A CA430532DA CA430532A CA 430532 A CA430532 A CA 430532A CA 430532 A CA430532 A CA 430532A CA 430532D A CA430532D A CA 430532DA CA 430532 A CA430532 A CA 430532A
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
CA430532A
Other languages
English (en)
Inventor
Clyde Holt Albert
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Publication date
Application granted granted Critical
Publication of CA430532A publication Critical patent/CA430532A/fr
Expired legal-status Critical Current

Links

CA430532A Appareil a perforer Expired CA430532A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA430532T

Publications (1)

Publication Number Publication Date
CA430532A true CA430532A (fr) 1945-10-09

Family

ID=35545554

Family Applications (1)

Application Number Title Priority Date Filing Date
CA430532A Expired CA430532A (fr) Appareil a perforer

Country Status (1)

Country Link
CA (1) CA430532A (fr)

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