CA410266A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA410266A
CA410266A CA410266A CA410266DA CA410266A CA 410266 A CA410266 A CA 410266A CA 410266 A CA410266 A CA 410266A CA 410266D A CA410266D A CA 410266DA CA 410266 A CA410266 A CA 410266A
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
CA410266A
Other languages
English (en)
Inventor
Harry Herrick Roswell
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA410266A publication Critical patent/CA410266A/fr
Expired legal-status Critical Current

Links

CA410266A Systeme telephonique Expired CA410266A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA410266T

Publications (1)

Publication Number Publication Date
CA410266A true CA410266A (fr) 1943-01-26

Family

ID=35421568

Family Applications (1)

Application Number Title Priority Date Filing Date
CA410266A Expired CA410266A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA410266A (fr)

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