CA489842A - Record card punching machine - Google Patents

Record card punching machine

Info

Publication number
CA489842A
CA489842A CA489842A CA489842DA CA489842A CA 489842 A CA489842 A CA 489842A CA 489842 A CA489842 A CA 489842A CA 489842D A CA489842D A CA 489842DA CA 489842 A CA489842 A CA 489842A
Authority
CA
Canada
Prior art keywords
punching machine
card punching
record card
record
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
CA489842A
Other languages
French (fr)
Inventor
M. Cunningham James
F. Smith Arthur
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 CA489842A publication Critical patent/CA489842A/en
Expired legal-status Critical Current

Links

CA489842A Record card punching machine Expired CA489842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA489842T

Publications (1)

Publication Number Publication Date
CA489842A true CA489842A (en) 1953-01-20

Family

ID=35629571

Family Applications (1)

Application Number Title Priority Date Filing Date
CA489842A Expired CA489842A (en) Record card punching machine

Country Status (1)

Country Link
CA (1) CA489842A (en)

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