CA420816A - Perforatrice - Google Patents

Perforatrice

Info

Publication number
CA420816A
CA420816A CA420816A CA420816DA CA420816A CA 420816 A CA420816 A CA 420816A CA 420816 A CA420816 A CA 420816A CA 420816D A CA420816D A CA 420816DA CA 420816 A CA420816 A CA 420816A
Authority
CA
Canada
Prior art keywords
punching machine
punching
machine
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
CA420816A
Other languages
English (en)
Inventor
D. Lake Clair
E. Hamilton Francis
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 CA420816A publication Critical patent/CA420816A/fr
Expired legal-status Critical Current

Links

CA420816A Perforatrice Expired CA420816A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA420816T

Publications (1)

Publication Number Publication Date
CA420816A true CA420816A (fr) 1944-06-13

Family

ID=35531756

Family Applications (1)

Application Number Title Priority Date Filing Date
CA420816A Expired CA420816A (fr) Perforatrice

Country Status (1)

Country Link
CA (1) CA420816A (fr)

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