CA504144A - Poinconneuse de fiches - Google Patents

Poinconneuse de fiches

Info

Publication number
CA504144A
CA504144A CA504144A CA504144DA CA504144A CA 504144 A CA504144 A CA 504144A CA 504144 A CA504144 A CA 504144A CA 504144D A CA504144D A CA 504144DA CA 504144 A CA504144 A CA 504144A
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
CA504144A
Other languages
English (en)
Inventor
W. Gardinor Elliott
B. Crowell Arnold
Original Assignee
International Business Machines Corp
Publication date
Application granted granted Critical
Publication of CA504144A publication Critical patent/CA504144A/fr
Expired legal-status Critical Current

Links

CA504144A Poinconneuse de fiches Expired CA504144A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA504144T

Publications (1)

Publication Number Publication Date
CA504144A true CA504144A (fr) 1954-07-06

Family

ID=35650065

Family Applications (1)

Application Number Title Priority Date Filing Date
CA504144A Expired CA504144A (fr) Poinconneuse de fiches

Country Status (1)

Country Link
CA (1) CA504144A (fr)

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