CA411301A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA411301A
CA411301A CA411301A CA411301DA CA411301A CA 411301 A CA411301 A CA 411301A CA 411301 A CA411301 A CA 411301A CA 411301D A CA411301D A CA 411301DA CA 411301 A CA411301 A CA 411301A
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
CA411301A
Other languages
English (en)
Inventor
Sigford Peterson Edward
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA411301A publication Critical patent/CA411301A/fr
Expired legal-status Critical Current

Links

CA411301A Systeme telephonique Expired CA411301A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA411301T

Publications (1)

Publication Number Publication Date
CA411301A true CA411301A (fr) 1943-03-23

Family

ID=35422603

Family Applications (1)

Application Number Title Priority Date Filing Date
CA411301A Expired CA411301A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA411301A (fr)

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