CA682144A - Carrier telephone systems - Google Patents

Carrier telephone systems

Info

Publication number
CA682144A
CA682144A CA682144A CA682144DA CA682144A CA 682144 A CA682144 A CA 682144A CA 682144 A CA682144 A CA 682144A CA 682144D A CA682144D A CA 682144DA CA 682144 A CA682144 A CA 682144A
Authority
CA
Canada
Prior art keywords
telephone systems
carrier telephone
carrier
systems
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
CA682144A
Inventor
B. Law Harry
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.)
HER MAJESTY'S POSTMASTER GENERAL OF GREAT BRITAIN
Original Assignee
HER MAJESTY'S POSTMASTER GENERAL OF GREAT BRITAIN
Publication date
Application granted granted Critical
Publication of CA682144A publication Critical patent/CA682144A/en
Expired legal-status Critical Current

Links

CA682144A Carrier telephone systems Expired CA682144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA682144T

Publications (1)

Publication Number Publication Date
CA682144A true CA682144A (en) 1964-03-17

Family

ID=35983230

Family Applications (1)

Application Number Title Priority Date Filing Date
CA682144A Expired CA682144A (en) Carrier telephone systems

Country Status (1)

Country Link
CA (1) CA682144A (en)

Similar Documents

Publication Publication Date Title
CA682144A (en) Carrier telephone systems
CA687558A (en) Telephone systems
CA690756A (en) Telephone systems
CA682150A (en) Catalyst carrier
CA690627A (en) Telephone system
AU407923B2 (en) Telephone system
CA693512A (en) Telephone system
CA696603A (en) Telephone system
CA681204A (en) Communication systems
CA685682A (en) Communication systems
CA689421A (en) Telephone system ring-tripping arrangement
CA692281A (en) Carrier telecommunication supervisory system
CA677709A (en) Telephone exchange systems
CA686468A (en) Automatic telephone systems
CA675187A (en) Telephone carrier system
AU412626B2 (en) Subscriber carrier systems
AU6607165A (en) Telephone system
CA696638A (en) Cross-bar telephone system
AU293492B2 (en) Interlocked communication systems
CA685119A (en) Mobile boat carrier
CA683693A (en) Automatic telephone system
CA699026A (en) Pilot-wire systems
CA684314A (en) Communication system
AU401472B2 (en) Communication system
AU401182B2 (en) Improvements in telephone systems