CA737059A - Telephone trunk make busy circuit - Google Patents

Telephone trunk make busy circuit

Info

Publication number
CA737059A
CA737059A CA737059A CA737059DA CA737059A CA 737059 A CA737059 A CA 737059A CA 737059 A CA737059 A CA 737059A CA 737059D A CA737059D A CA 737059DA CA 737059 A CA737059 A CA 737059A
Authority
CA
Canada
Prior art keywords
telephone trunk
busy circuit
make busy
trunk make
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
CA737059A
Inventor
C. Pilkinton Donald
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 CA737059A publication Critical patent/CA737059A/en
Expired legal-status Critical Current

Links

CA737059A Telephone trunk make busy circuit Expired CA737059A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA737059T

Publications (1)

Publication Number Publication Date
CA737059A true CA737059A (en) 1966-06-21

Family

ID=36135213

Family Applications (1)

Application Number Title Priority Date Filing Date
CA737059A Expired CA737059A (en) Telephone trunk make busy circuit

Country Status (1)

Country Link
CA (1) CA737059A (en)

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