CA299415A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA299415A
CA299415A CA299415A CA299415DA CA299415A CA 299415 A CA299415 A CA 299415A CA 299415 A CA299415 A CA 299415A CA 299415D A CA299415D A CA 299415DA CA 299415 A CA299415 A CA 299415A
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
CA299415A
Other languages
English (en)
Inventor
Samuel Skillman 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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA299415A publication Critical patent/CA299415A/fr
Expired legal-status Critical Current

Links

CA299415A Systeme telephonique Expired CA299415A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA299415T

Publications (1)

Publication Number Publication Date
CA299415A true CA299415A (fr) 1930-04-15

Family

ID=35236734

Family Applications (1)

Application Number Title Priority Date Filing Date
CA299415A Expired CA299415A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA299415A (fr)

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