CA505348A - Ten key keyboard mechanisms for accounting machines - Google Patents

Ten key keyboard mechanisms for accounting machines

Info

Publication number
CA505348A
CA505348A CA505348A CA505348DA CA505348A CA 505348 A CA505348 A CA 505348A CA 505348 A CA505348 A CA 505348A CA 505348D A CA505348D A CA 505348DA CA 505348 A CA505348 A CA 505348A
Authority
CA
Canada
Prior art keywords
key keyboard
accounting machines
keyboard mechanisms
mechanisms
accounting
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
CA505348A
Other languages
French (fr)
Inventor
J. Furman Frank
J. Kistner Harold
L. Read Harold
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 CA505348A publication Critical patent/CA505348A/en
Expired legal-status Critical Current

Links

CA505348A Ten key keyboard mechanisms for accounting machines Expired CA505348A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA505348T

Publications (1)

Publication Number Publication Date
CA505348A true CA505348A (en) 1954-08-24

Family

ID=35651270

Family Applications (1)

Application Number Title Priority Date Filing Date
CA505348A Expired CA505348A (en) Ten key keyboard mechanisms for accounting machines

Country Status (1)

Country Link
CA (1) CA505348A (en)

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