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CA434574A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA434574A
CA434574A CA434574A CA434574DA CA434574A CA 434574 A CA434574 A CA 434574A CA 434574 A CA434574 A CA 434574A CA 434574D A CA434574D A CA 434574DA CA 434574 A CA434574 A CA 434574A
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
CA434574A
Other languages
English (en)
Inventor
Telephone And Telegraph Company Associated
H. Voss John
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA434574A publication Critical patent/CA434574A/fr
Expired legal-status Critical Current

Links

CA434574A Systeme telephonique Expired CA434574A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA434574T

Publications (1)

Publication Number Publication Date
CA434574A true CA434574A (fr) 1946-05-07

Family

ID=35549203

Family Applications (1)

Application Number Title Priority Date Filing Date
CA434574A Expired CA434574A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA434574A (fr)

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