CA372271A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA372271A
CA372271A CA372271A CA372271DA CA372271A CA 372271 A CA372271 A CA 372271A CA 372271 A CA372271 A CA 372271A CA 372271D A CA372271D A CA 372271DA CA 372271 A CA372271 A CA 372271A
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
CA372271A
Other languages
English (en)
Inventor
F. Crocker Thomas
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 CA372271A publication Critical patent/CA372271A/fr
Expired legal-status Critical Current

Links

CA372271A Systeme telephonique Expired CA372271A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA372271T

Publications (1)

Publication Number Publication Date
CA372271A true CA372271A (fr) 1938-03-08

Family

ID=35373336

Family Applications (1)

Application Number Title Priority Date Filing Date
CA372271A Expired CA372271A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA372271A (fr)

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