CA414292A - Perforatrice commandee par cartes - Google Patents

Perforatrice commandee par cartes

Info

Publication number
CA414292A
CA414292A CA414292A CA414292DA CA414292A CA 414292 A CA414292 A CA 414292A CA 414292 A CA414292 A CA 414292A CA 414292D A CA414292D A CA 414292DA CA 414292 A CA414292 A CA 414292A
Authority
CA
Canada
Prior art keywords
perforating machine
record controlled
controlled perforating
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
CA414292A
Other languages
English (en)
Inventor
W. Bryce James
Original Assignee
International Business Machines Corp
Publication date
Application granted granted Critical
Publication of CA414292A publication Critical patent/CA414292A/fr
Expired legal-status Critical Current

Links

CA414292A Perforatrice commandee par cartes Expired CA414292A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA414292T

Publications (1)

Publication Number Publication Date
CA414292A true CA414292A (fr) 1943-08-03

Family

ID=35523483

Family Applications (1)

Application Number Title Priority Date Filing Date
CA414292A Expired CA414292A (fr) Perforatrice commandee par cartes

Country Status (1)

Country Link
CA (1) CA414292A (fr)

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