CA416367A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA416367A
CA416367A CA416367A CA416367DA CA416367A CA 416367 A CA416367 A CA 416367A CA 416367 A CA416367 A CA 416367A CA 416367D A CA416367D A CA 416367DA CA 416367 A CA416367 A CA 416367A
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
CA416367A
Other languages
English (en)
Inventor
Harry Herrick Roswell
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA416367A publication Critical patent/CA416367A/fr
Expired legal-status Critical Current

Links

CA416367A Systeme telephonique Expired CA416367A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA416367T

Publications (1)

Publication Number Publication Date
CA416367A true CA416367A (fr) 1943-11-09

Family

ID=35525587

Family Applications (1)

Application Number Title Priority Date Filing Date
CA416367A Expired CA416367A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA416367A (fr)

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