CA298710A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA298710A
CA298710A CA298710A CA298710DA CA298710A CA 298710 A CA298710 A CA 298710A CA 298710 A CA298710 A CA 298710A CA 298710D A CA298710D A CA 298710DA CA 298710 A CA298710 A CA 298710A
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
CA298710A
Other languages
English (en)
Inventor
Leroy Quass Ralph
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 CA298710A publication Critical patent/CA298710A/fr
Expired legal-status Critical Current

Links

CA298710A Systeme telephonique Expired CA298710A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA298710T

Publications (1)

Publication Number Publication Date
CA298710A true CA298710A (fr) 1930-03-25

Family

ID=35236029

Family Applications (1)

Application Number Title Priority Date Filing Date
CA298710A Expired CA298710A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA298710A (fr)

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