CA441465A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA441465A
CA441465A CA441465A CA441465DA CA441465A CA 441465 A CA441465 A CA 441465A CA 441465 A CA441465 A CA 441465A CA 441465D A CA441465D A CA 441465DA CA 441465 A CA441465 A CA 441465A
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
CA441465A
Other languages
English (en)
Inventor
Jr. George E. Stonebridge
Original Assignee
Automatic Electric Laboratories Inc
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA441465A publication Critical patent/CA441465A/fr
Expired legal-status Critical Current

Links

CA441465A Systeme telephonique Expired CA441465A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA441465T

Publications (1)

Publication Number Publication Date
CA441465A true CA441465A (fr) 1947-05-20

Family

ID=35556697

Family Applications (1)

Application Number Title Priority Date Filing Date
CA441465A Expired CA441465A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA441465A (fr)

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