CA381727A - Dispositif de touche de cartes-dossiers - Google Patents

Dispositif de touche de cartes-dossiers

Info

Publication number
CA381727A
CA381727A CA381727A CA381727DA CA381727A CA 381727 A CA381727 A CA 381727A CA 381727 A CA381727 A CA 381727A CA 381727D A CA381727D A CA 381727DA CA 381727 A CA381727 A CA 381727A
Authority
CA
Canada
Prior art keywords
sensing device
record sensing
record
sensing
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
CA381727A
Other languages
English (en)
Inventor
F. Hayes Maxwell
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 CA381727A publication Critical patent/CA381727A/fr
Expired legal-status Critical Current

Links

CA381727A Dispositif de touche de cartes-dossiers Expired CA381727A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA381727T

Publications (1)

Publication Number Publication Date
CA381727A true CA381727A (fr) 1939-05-30

Family

ID=35386966

Family Applications (1)

Application Number Title Priority Date Filing Date
CA381727A Expired CA381727A (fr) Dispositif de touche de cartes-dossiers

Country Status (1)

Country Link
CA (1) CA381727A (fr)

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