CA478158A - Record sensing devices - Google Patents

Record sensing devices

Info

Publication number
CA478158A
CA478158A CA478158A CA478158DA CA478158A CA 478158 A CA478158 A CA 478158A CA 478158 A CA478158 A CA 478158A CA 478158D A CA478158D A CA 478158DA CA 478158 A CA478158 A CA 478158A
Authority
CA
Canada
Prior art keywords
sensing devices
record sensing
record
devices
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
CA478158A
Other languages
French (fr)
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
Application granted granted Critical
Publication of CA478158A publication Critical patent/CA478158A/en
Expired legal-status Critical Current

Links

CA478158A Record sensing devices Expired CA478158A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA478158T

Publications (1)

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

Family

ID=35617812

Family Applications (1)

Application Number Title Priority Date Filing Date
CA478158A Expired CA478158A (en) Record sensing devices

Country Status (1)

Country Link
CA (1) CA478158A (en)

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