CA847983A - Time division key telephone system - Google Patents

Time division key telephone system

Info

Publication number
CA847983A
CA847983A CA847983A CA847983DA CA847983A CA 847983 A CA847983 A CA 847983A CA 847983 A CA847983 A CA 847983A CA 847983D A CA847983D A CA 847983DA CA 847983 A CA847983 A CA 847983A
Authority
CA
Canada
Prior art keywords
time division
telephone system
key telephone
division key
time
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
CA847983A
Inventor
Robert M. Averill, Jr.
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 CA847983A publication Critical patent/CA847983A/en
Expired legal-status Critical Current

Links

CA847983A Time division key telephone system Expired CA847983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA847983T

Publications (1)

Publication Number Publication Date
CA847983A true CA847983A (en) 1970-07-28

Family

ID=36332210

Family Applications (1)

Application Number Title Priority Date Filing Date
CA847983A Expired CA847983A (en) Time division key telephone system

Country Status (1)

Country Link
CA (1) CA847983A (en)

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