CA452998A - Systeme indicateur de presences - Google Patents

Systeme indicateur de presences

Info

Publication number
CA452998A
CA452998A CA452998A CA452998DA CA452998A CA 452998 A CA452998 A CA 452998A CA 452998 A CA452998 A CA 452998A CA 452998D A CA452998D A CA 452998DA CA 452998 A CA452998 A CA 452998A
Authority
CA
Canada
Prior art keywords
indicator system
registration indicator
registration
indicator
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
CA452998A
Other languages
English (en)
Inventor
A. Kavanagh Joseph
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 CA452998A publication Critical patent/CA452998A/fr
Expired legal-status Critical Current

Links

CA452998A Systeme indicateur de presences Expired CA452998A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA452998T

Publications (1)

Publication Number Publication Date
CA452998A true CA452998A (fr) 1948-11-30

Family

ID=35570725

Family Applications (1)

Application Number Title Priority Date Filing Date
CA452998A Expired CA452998A (fr) Systeme indicateur de presences

Country Status (1)

Country Link
CA (1) CA452998A (fr)

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