CA856901A - Telephoning system - Google Patents

Telephoning system

Info

Publication number
CA856901A
CA856901A CA856901A CA856901DA CA856901A CA 856901 A CA856901 A CA 856901A CA 856901 A CA856901 A CA 856901A CA 856901D A CA856901D A CA 856901DA CA 856901 A CA856901 A CA 856901A
Authority
CA
Canada
Prior art keywords
telephoning
telephoning system
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
CA856901A
Inventor
Colman Robert
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.)
General Alarm Corp
Original Assignee
General Alarm Corp
Publication date
Application granted granted Critical
Publication of CA856901A publication Critical patent/CA856901A/en
Expired legal-status Critical Current

Links

CA856901A Telephoning system Expired CA856901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA856901T

Publications (1)

Publication Number Publication Date
CA856901A true CA856901A (en) 1970-11-24

Family

ID=36342430

Family Applications (1)

Application Number Title Priority Date Filing Date
CA856901A Expired CA856901A (en) Telephoning system

Country Status (1)

Country Link
CA (1) CA856901A (en)

Similar Documents

Publication Publication Date Title
CA949279A (en) Structural system
CA933666A (en) Multichannel communication system
AU462216B1 (en) Communication systems
CA941750A (en) Facsimile system
CA941943A (en) Call transfer system
CA968086A (en) Telecommunications systems
CA963133A (en) Telephone intercommunicating system
CA856901A (en) Telephoning system
CA857517A (en) Terrain-following system
CA842959A (en) Telephone system
CA842438A (en) Distributed telephone system
AU458841B2 (en) Telephone system
CA836743A (en) Communication system
CA841250A (en) Communication system
CA838750A (en) Communication system
CA837231A (en) Telephone systems
CA855374A (en) Bathythermograph system
CA854971A (en) Photointerpretation system
CA852230A (en) Marking-record system
CA852232A (en) Mark-making system
CA839418A (en) Communications system
CA992185A (en) Telephone intercommunicating system
CA854796A (en) Telephone set
CA859826A (en) Visual communication system
CA841130A (en) Radiotelephone system