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)

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