CA429471A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA429471A
CA429471A CA429471A CA429471DA CA429471A CA 429471 A CA429471 A CA 429471A CA 429471 A CA429471 A CA 429471A CA 429471D A CA429471D A CA 429471DA CA 429471 A CA429471 A CA 429471A
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
CA429471A
Other languages
English (en)
Inventor
John Busch Aloysius
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 Corp
Original Assignee
Western Electric Co Inc
Bell Telephone Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA429471A publication Critical patent/CA429471A/fr
Expired legal-status Critical Current

Links

CA429471A Systeme telephonique Expired CA429471A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA429471T

Publications (1)

Publication Number Publication Date
CA429471A true CA429471A (fr) 1945-08-14

Family

ID=35544470

Family Applications (1)

Application Number Title Priority Date Filing Date
CA429471A Expired CA429471A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA429471A (fr)

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