CA824757A - Time-out circuit for key telephone systems - Google Patents

Time-out circuit for key telephone systems

Info

Publication number
CA824757A
CA824757A CA824757A CA824757DA CA824757A CA 824757 A CA824757 A CA 824757A CA 824757 A CA824757 A CA 824757A CA 824757D A CA824757D A CA 824757DA CA 824757 A CA824757 A CA 824757A
Authority
CA
Canada
Prior art keywords
time
out circuit
telephone systems
key telephone
key
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
CA824757A
Inventor
R. Cross James
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.)
Bell Telephone Company of Canada
Original Assignee
Bell Telephone Company of Canada
Publication date
Application granted granted Critical
Publication of CA824757A publication Critical patent/CA824757A/en
Expired legal-status Critical Current

Links

CA824757A Time-out circuit for key telephone systems Expired CA824757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA824757T

Publications (1)

Publication Number Publication Date
CA824757A true CA824757A (en) 1969-10-07

Family

ID=36302186

Family Applications (1)

Application Number Title Priority Date Filing Date
CA824757A Expired CA824757A (en) Time-out circuit for key telephone systems

Country Status (1)

Country Link
CA (1) CA824757A (en)

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