CA279603A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA279603A
CA279603A CA279603A CA279603DA CA279603A CA 279603 A CA279603 A CA 279603A CA 279603 A CA279603 A CA 279603A CA 279603D A CA279603D A CA 279603DA CA 279603 A CA279603 A CA 279603A
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
CA279603A
Other languages
English (en)
Inventor
Savin John
Edward Boyd 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.)
Automatic Telephone Manufacturing Co Ltd
Original Assignee
Automatic Telephone Manufacturing Co Ltd
Publication date
Application granted granted Critical
Publication of CA279603A publication Critical patent/CA279603A/fr
Expired legal-status Critical Current

Links

CA279603A Systeme telephonique Expired CA279603A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA279603T

Publications (1)

Publication Number Publication Date
CA279603A true CA279603A (fr) 1928-04-24

Family

ID=35212695

Family Applications (1)

Application Number Title Priority Date Filing Date
CA279603A Expired CA279603A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA279603A (fr)

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