CA656068A - Private branch exchange telephone system - Google Patents

Private branch exchange telephone system

Info

Publication number
CA656068A
CA656068A CA656068A CA656068DA CA656068A CA 656068 A CA656068 A CA 656068A CA 656068 A CA656068 A CA 656068A CA 656068D A CA656068D A CA 656068DA CA 656068 A CA656068 A CA 656068A
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
CA656068A
Inventor
H. Abbott Henry
R. Martin Charles
G. Walsh John
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 CA656068A publication Critical patent/CA656068A/en
Expired legal-status Critical Current

Links

CA656068A Private branch exchange telephone system Expired CA656068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA656068T

Publications (1)

Publication Number Publication Date
CA656068A true CA656068A (en) 1963-01-15

Family

ID=35949401

Family Applications (1)

Application Number Title Priority Date Filing Date
CA656068A Expired CA656068A (en) Private branch exchange telephone system

Country Status (1)

Country Link
CA (1) CA656068A (en)

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