CA469552A - Dispositifs sensibles a des inscriptions perforees - Google Patents

Dispositifs sensibles a des inscriptions perforees

Info

Publication number
CA469552A
CA469552A CA469552A CA469552DA CA469552A CA 469552 A CA469552 A CA 469552A CA 469552 A CA469552 A CA 469552A CA 469552D A CA469552D A CA 469552DA CA 469552 A CA469552 A CA 469552A
Authority
CA
Canada
Prior art keywords
sensing devices
perforated record
record sensing
perforated
devices
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
CA469552A
Other languages
English (en)
Inventor
B. Johnson Reynold
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 CA469552A publication Critical patent/CA469552A/fr
Expired legal-status Critical Current

Links

CA469552A Dispositifs sensibles a des inscriptions perforees Expired CA469552A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA469552T

Publications (1)

Publication Number Publication Date
CA469552A true CA469552A (fr) 1950-11-21

Family

ID=35603490

Family Applications (1)

Application Number Title Priority Date Filing Date
CA469552A Expired CA469552A (fr) Dispositifs sensibles a des inscriptions perforees

Country Status (1)

Country Link
CA (1) CA469552A (fr)

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