CA478158A - Dispositifs de lecture de fiches - Google Patents

Dispositifs de lecture de fiches

Info

Publication number: CA478158A
Authority: CA; Canada
Prior art keywords: sensing devices; record sensing; record; devices; sensing
Prior art date: 1951-10-30
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

CA478158A

Other languages

English (en)

Inventor

S. Beattie Horace

E. Page Ralph

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

1951-10-30

1951-10-30 Application granted granted Critical

1951-10-30 Publication of CA478158A publication Critical patent/CA478158A/fr

Status Expired legal-status Critical Current

Links

CA478158A Dispositifs de lecture de fiches Expired CA478158A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA478158T

Publications (1)

Publication Number	Publication Date
CA478158A true CA478158A (fr)	1951-10-30

Family

ID=35617812

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA478158A Expired CA478158A (fr)			Dispositifs de lecture de fiches

Country Status (1)

Country	Link
CA (1)	CA478158A (fr)

0
- CA CA478158A patent/CA478158A/fr not_active Expired

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