CA450926A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA450926A
CA450926A CA450926A CA450926DA CA450926A CA 450926 A CA450926 A CA 450926A CA 450926 A CA450926 A CA 450926A CA 450926D A CA450926D A CA 450926DA CA 450926 A CA450926 A CA 450926A
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
CA450926A
Other languages
English (en)
Inventor
E. Ostline John
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA450926A publication Critical patent/CA450926A/fr
Expired legal-status Critical Current

Links

CA450926A Systeme telephonique Expired CA450926A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA450926T

Publications (1)

Publication Number Publication Date
CA450926A true CA450926A (fr) 1948-08-31

Family

ID=35568646

Family Applications (1)

Application Number Title Priority Date Filing Date
CA450926A Expired CA450926A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA450926A (fr)

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