CA472154A - Appareils de chronometrage secondaire - Google Patents

Appareils de chronometrage secondaire

Info

Publication number
CA472154A
CA472154A CA472154A CA472154DA CA472154A CA 472154 A CA472154 A CA 472154A CA 472154 A CA472154 A CA 472154A CA 472154D A CA472154D A CA 472154DA CA 472154 A CA472154 A CA 472154A
Authority
CA
Canada
Prior art keywords
time keeping
secondary time
keeping apparatus
time
keeping
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
CA472154A
Other languages
English (en)
Inventor
B. Johnson Reynold
F. Geiger Edward
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 CA472154A publication Critical patent/CA472154A/fr
Expired legal-status Critical Current

Links

CA472154A Appareils de chronometrage secondaire Expired CA472154A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA472154T

Publications (1)

Publication Number Publication Date
CA472154A true CA472154A (fr) 1951-03-13

Family

ID=35606111

Family Applications (1)

Application Number Title Priority Date Filing Date
CA472154A Expired CA472154A (fr) Appareils de chronometrage secondaire

Country Status (1)

Country Link
CA (1) CA472154A (fr)

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