CA423179A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA423179A
CA423179A CA423179A CA423179DA CA423179A CA 423179 A CA423179 A CA 423179A CA 423179 A CA423179 A CA 423179A CA 423179D A CA423179D A CA 423179DA CA 423179 A CA423179 A CA 423179A
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
CA423179A
Other languages
English (en)
Inventor
Dewey Koechling Charles
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 CA423179A publication Critical patent/CA423179A/fr
Expired legal-status Critical Current

Links

CA423179A Systeme telephonique Expired CA423179A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA423179T

Publications (1)

Publication Number Publication Date
CA423179A true CA423179A (fr) 1944-10-10

Family

ID=35534181

Family Applications (1)

Application Number Title Priority Date Filing Date
CA423179A Expired CA423179A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA423179A (fr)

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