CA317407A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA317407A
CA317407A CA317407A CA317407DA CA317407A CA 317407 A CA317407 A CA 317407A CA 317407 A CA317407 A CA 317407A CA 317407D A CA317407D A CA 317407DA CA 317407 A CA317407 A CA 317407A
Authority
CA
Canada
Prior art keywords
telephone system
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
CA317407A
Other languages
English (en)
Inventor
Gillings Charles
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.)
Automatic Telephone Manufacturing Co Ltd
Original Assignee
Automatic Telephone Manufacturing Co Ltd
Publication date
Application granted granted Critical
Publication of CA317407A publication Critical patent/CA317407A/fr
Expired legal-status Critical Current

Links

CA317407A Systeme telephonique Expired CA317407A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA317407T

Publications (1)

Publication Number Publication Date
CA317407A true CA317407A (fr) 1931-11-24

Family

ID=35277962

Family Applications (1)

Application Number Title Priority Date Filing Date
CA317407A Expired CA317407A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA317407A (fr)

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