CA763518A - Line circuit for key telephone system - Google Patents

Line circuit for key telephone system

Info

Publication number
CA763518A
CA763518A CA763518A CA763518DA CA763518A CA 763518 A CA763518 A CA 763518A CA 763518 A CA763518 A CA 763518A CA 763518D A CA763518D A CA 763518DA CA 763518 A CA763518 A CA 763518A
Authority
CA
Canada
Prior art keywords
telephone system
line circuit
key telephone
key
circuit
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
CA763518A
Inventor
P. Smith John
E. Morse Charles
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 CA763518A publication Critical patent/CA763518A/en
Expired legal-status Critical Current

Links

CA763518A Line circuit for key telephone system Expired CA763518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA763518T

Publications (1)

Publication Number Publication Date
CA763518A true CA763518A (en) 1967-07-18

Family

ID=36200659

Family Applications (1)

Application Number Title Priority Date Filing Date
CA763518A Expired CA763518A (en) Line circuit for key telephone system

Country Status (1)

Country Link
CA (1) CA763518A (en)

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