CA502786A - Subscriber signalling system - Google Patents

Subscriber signalling system

Info

Publication number
CA502786A
CA502786A CA502786A CA502786DA CA502786A CA 502786 A CA502786 A CA 502786A CA 502786 A CA502786 A CA 502786A CA 502786D A CA502786D A CA 502786DA CA 502786 A CA502786 A CA 502786A
Authority
CA
Canada
Prior art keywords
signalling system
subscriber signalling
subscriber
signalling
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
CA502786A
Other languages
French (fr)
Inventor
O. Gray Richard
M. Roschke Erwin
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.)
Zenith Electronics LLC
Original Assignee
Zenith Radio Corp
Publication date
Application granted granted Critical
Publication of CA502786A publication Critical patent/CA502786A/en
Expired legal-status Critical Current

Links

CA502786A Subscriber signalling system Expired CA502786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA502786T

Publications (1)

Publication Number Publication Date
CA502786A true CA502786A (en) 1954-05-18

Family

ID=35648691

Family Applications (1)

Application Number Title Priority Date Filing Date
CA502786A Expired CA502786A (en) Subscriber signalling system

Country Status (1)

Country Link
CA (1) CA502786A (en)

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