CA399232A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA399232A
CA399232A CA399232A CA399232DA CA399232A CA 399232 A CA399232 A CA 399232A CA 399232 A CA399232 A CA 399232A CA 399232D A CA399232D A CA 399232DA CA 399232 A CA399232 A CA 399232A
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
CA399232A
Other languages
English (en)
Inventor
Monroe Beaumont William
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 CA399232A publication Critical patent/CA399232A/fr
Expired legal-status Critical Current

Links

CA399232A Systeme telephonique Expired CA399232A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA399232T

Publications (1)

Publication Number Publication Date
CA399232A true CA399232A (fr) 1941-09-09

Family

ID=35409692

Family Applications (1)

Application Number Title Priority Date Filing Date
CA399232A Expired CA399232A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA399232A (fr)

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