CA502785A - Subscriber signalling system - Google Patents

Subscriber signalling system

Info

Publication number
CA502785A
CA502785A CA502785A CA502785DA CA502785A CA 502785 A CA502785 A CA 502785A CA 502785 A CA502785 A CA 502785A CA 502785D A CA502785D A CA 502785DA CA 502785 A CA502785 A CA 502785A
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
CA502785A
Other languages
French (fr)
Inventor
W. Aram Nathan
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 CA502785A publication Critical patent/CA502785A/en
Expired legal-status Critical Current

Links

CA502785A Subscriber signalling system Expired CA502785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA502785T

Publications (1)

Publication Number Publication Date
CA502785A true CA502785A (en) 1954-05-18

Family

ID=35648690

Family Applications (1)

Application Number Title Priority Date Filing Date
CA502785A Expired CA502785A (en) Subscriber signalling system

Country Status (1)

Country Link
CA (1) CA502785A (en)

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