CA770692A - Telephone system substation circuits - Google Patents

Telephone system substation circuits

Info

Publication number
CA770692A
CA770692A CA770692A CA770692DA CA770692A CA 770692 A CA770692 A CA 770692A CA 770692 A CA770692 A CA 770692A CA 770692D A CA770692D A CA 770692DA CA 770692 A CA770692 A CA 770692A
Authority
CA
Canada
Prior art keywords
telephone system
system substation
substation circuits
circuits
telephone
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
CA770692A
Inventor
E. W. Wheeler Rodney
J. Lane Peter
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
Publication date
Application granted granted Critical
Publication of CA770692A publication Critical patent/CA770692A/en
Expired legal-status Critical Current

Links

CA770692A Telephone system substation circuits Expired CA770692A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA770692T

Publications (1)

Publication Number Publication Date
CA770692A true CA770692A (en) 1967-10-31

Family

ID=36214096

Family Applications (1)

Application Number Title Priority Date Filing Date
CA770692A Expired CA770692A (en) Telephone system substation circuits

Country Status (1)

Country Link
CA (1) CA770692A (en)

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