CA669351A - Signalling arrangements for telephone instruments - Google Patents

Signalling arrangements for telephone instruments

Info

Publication number
CA669351A
CA669351A CA669351A CA669351DA CA669351A CA 669351 A CA669351 A CA 669351A CA 669351 A CA669351 A CA 669351A CA 669351D A CA669351D A CA 669351DA CA 669351 A CA669351 A CA 669351A
Authority
CA
Canada
Prior art keywords
telephone instruments
signalling arrangements
signalling
arrangements
instruments
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
CA669351A
Inventor
G. T. Boeryd Arne
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
Publication date
Application granted granted Critical
Publication of CA669351A publication Critical patent/CA669351A/en
Expired legal-status Critical Current

Links

CA669351A Signalling arrangements for telephone instruments Expired CA669351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA669351T

Publications (1)

Publication Number Publication Date
CA669351A true CA669351A (en) 1963-08-27

Family

ID=35969692

Family Applications (1)

Application Number Title Priority Date Filing Date
CA669351A Expired CA669351A (en) Signalling arrangements for telephone instruments

Country Status (1)

Country Link
CA (1) CA669351A (en)

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