CA614962A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
CA614962A
CA614962A CA614962A CA614962DA CA614962A CA 614962 A CA614962 A CA 614962A CA 614962 A CA614962 A CA 614962A CA 614962D A CA614962D A CA 614962DA CA 614962 A CA614962 A CA 614962A
Authority
CA
Canada
Prior art keywords
telephone systems
telephone
systems
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
CA614962A
Inventor
L. Smith John
T. Baker George
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
Publication date
Application granted granted Critical
Publication of CA614962A publication Critical patent/CA614962A/en
Expired legal-status Critical Current

Links

CA614962A Telephone systems Expired CA614962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA614962T

Publications (1)

Publication Number Publication Date
CA614962A true CA614962A (en) 1961-02-21

Family

ID=35857271

Family Applications (1)

Application Number Title Priority Date Filing Date
CA614962A Expired CA614962A (en) Telephone systems

Country Status (1)

Country Link
CA (1) CA614962A (en)

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