CA662349A - Private branch exchange telephone system - Google Patents

Private branch exchange telephone system

Info

Publication number
CA662349A
CA662349A CA662349A CA662349DA CA662349A CA 662349 A CA662349 A CA 662349A CA 662349 A CA662349 A CA 662349A CA 662349D A CA662349D A CA 662349DA CA 662349 A CA662349 A CA 662349A
Authority
CA
Canada
Prior art keywords
telephone system
private branch
branch exchange
exchange telephone
private
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
CA662349A
Inventor
C. Olsen Orving
R. Martin Charles
H. Abbott Henry
A. Previte Richard
G. Walsh John
J. Walsh Henry
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA662349A publication Critical patent/CA662349A/en
Expired legal-status Critical Current

Links

CA662349A Private branch exchange telephone system Expired CA662349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA662349T

Publications (1)

Publication Number Publication Date
CA662349A true CA662349A (en) 1963-04-30

Family

ID=35956462

Family Applications (1)

Application Number Title Priority Date Filing Date
CA662349A Expired CA662349A (en) Private branch exchange telephone system

Country Status (1)

Country Link
CA (1) CA662349A (en)

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