CA689421A - Telephone system ring-tripping arrangement - Google Patents

Telephone system ring-tripping arrangement

Info

Publication number
CA689421A
CA689421A CA689421A CA689421DA CA689421A CA 689421 A CA689421 A CA 689421A CA 689421 A CA689421 A CA 689421A CA 689421D A CA689421D A CA 689421DA CA 689421 A CA689421 A CA 689421A
Authority
CA
Canada
Prior art keywords
telephone system
system ring
tripping arrangement
tripping
arrangement
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
CA689421A
Inventor
B. Clark John
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
Publication date
Application granted granted Critical
Publication of CA689421A publication Critical patent/CA689421A/en
Expired legal-status Critical Current

Links

CA689421A Telephone system ring-tripping arrangement Expired CA689421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA689421T

Publications (1)

Publication Number Publication Date
CA689421A true CA689421A (en) 1964-06-23

Family

ID=35992033

Family Applications (1)

Application Number Title Priority Date Filing Date
CA689421A Expired CA689421A (en) Telephone system ring-tripping arrangement

Country Status (1)

Country Link
CA (1) CA689421A (en)

Similar Documents

Publication Publication Date Title
CA689421A (en) Telephone system ring-tripping arrangement
AU407923B2 (en) Telephone system
CA690627A (en) Telephone system
CA693512A (en) Telephone system
CA696603A (en) Telephone system
CA697960A (en) Leak-detecting telephone cable
CA687558A (en) Telephone systems
CA690756A (en) Telephone systems
AU6607165A (en) Telephone system
CA687908A (en) Telephone switching system
AU288991B2 (en) Telephone switching system
CA696033A (en) Distributed telephone line concentrator system
CA682812A (en) Telephone terminal selectro system
CA696638A (en) Cross-bar telephone system
CA681653A (en) Loudspeaker system
CA680270A (en) Line concentrating telephone system
AU401472B2 (en) Communication system
CA684314A (en) Communication system
AU281559B2 (en) Limited capacity telephone system
CA678572A (en) Telephone line concentrator system
CA693648A (en) Sonobuoy-bathythermograph system
AU290411B2 (en) Ballhandling system
CA688516A (en) Subscription-television system
CA693172A (en) Distributed telephone line concentrator
AU401182B2 (en) Improvements in telephone systems