CA380000A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA380000A
CA380000A CA380000A CA380000DA CA380000A CA 380000 A CA380000 A CA 380000A CA 380000 A CA380000 A CA 380000A CA 380000D A CA380000D A CA 380000DA CA 380000 A CA380000 A CA 380000A
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
CA380000A
Other languages
English (en)
Inventor
R. Miller Merton
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.)
Associated Telephone and Telegraph Co
Original Assignee
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA380000A publication Critical patent/CA380000A/fr
Expired legal-status Critical Current

Links

CA380000A Systeme telephonique Expired CA380000A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA380000T

Publications (1)

Publication Number Publication Date
CA380000A true CA380000A (fr) 1939-03-14

Family

ID=35384326

Family Applications (1)

Application Number Title Priority Date Filing Date
CA380000A Expired CA380000A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA380000A (fr)

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