CA243886A - Substation telephone circuit - Google Patents

Substation telephone circuit

Info

Publication number
CA243886A
CA243886A CA243886A CA243886DA CA243886A CA 243886 A CA243886 A CA 243886A CA 243886 A CA243886 A CA 243886A CA 243886D A CA243886D A CA 243886DA CA 243886 A CA243886 A CA 243886A
Authority
CA
Canada
Prior art keywords
telephone circuit
substation telephone
substation
circuit
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
CA243886A
Other languages
French (fr)
Inventor
Bessey Smith Arthur
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA243886A publication Critical patent/CA243886A/en
Expired legal-status Critical Current

Links

CA243886A Substation telephone circuit Expired CA243886A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA243886T

Publications (1)

Publication Number Publication Date
CA243886A true CA243886A (en) 1924-10-21

Family

ID=35147913

Family Applications (1)

Application Number Title Priority Date Filing Date
CA243886A Expired CA243886A (en) Substation telephone circuit

Country Status (1)

Country Link
CA (1) CA243886A (en)

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