CA380738A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA380738A
CA380738A CA380738A CA380738DA CA380738A CA 380738 A CA380738 A CA 380738A CA 380738 A CA380738 A CA 380738A CA 380738D A CA380738D A CA 380738DA CA 380738 A CA380738 A CA 380738A
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
CA380738A
Other languages
English (en)
Inventor
Hovland Henry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Inc
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA380738A publication Critical patent/CA380738A/fr
Expired legal-status Critical Current

Links

CA380738A Systeme telephonique Expired CA380738A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA380738T

Publications (1)

Publication Number Publication Date
CA380738A true CA380738A (fr) 1939-04-11

Family

ID=35385981

Family Applications (1)

Application Number Title Priority Date Filing Date
CA380738A Expired CA380738A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA380738A (fr)

Similar Documents

Publication Publication Date Title
CA384404A (fr) Systeme telephonique
CA381037A (fr) Systeme telephonique
CA383808A (fr) Systeme telephonique
CA379121A (fr) Systeme telephonique
CA379870A (fr) Systeme telephonique
CA379431A (fr) Systeme telephonique
CA380000A (fr) Systeme telephonique
CA379684A (fr) Systeme telephonique
CA383809A (fr) Systeme telephonique
CA385726A (fr) Systeme telephonique
CA380803A (fr) Systeme telephonique
CA379122A (fr) Systeme telephonique
CA383909A (fr) Systeme telephonique
CA383807A (fr) Systeme telephonique
CA383810A (fr) Systeme telephonique
CA382185A (fr) Systeme telephonique
CA381343A (fr) Systeme telephonique
CA381054A (fr) Systeme telephonique
CA379452A (fr) Systeme telephonique
CA381189A (fr) Systeme selecteur telephonique
CA380381A (fr) Systeme de communication
CA384635A (fr) Systeme de communication
CA379423A (fr) Systeme de communications
CA385260A (fr) Systeme de signaux telephoniques
CA381576A (fr) Systeme telephonique a intercommunications