CA423705A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA423705A
CA423705A CA423705A CA423705DA CA423705A CA 423705 A CA423705 A CA 423705A CA 423705 A CA423705 A CA 423705A CA 423705D A CA423705D A CA 423705DA CA 423705 A CA423705 A CA 423705A
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
CA423705A
Other languages
English (en)
Inventor
Baumfalk John
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 Inc
Original Assignee
Western Electric Co Inc
Bell Telephone Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA423705A publication Critical patent/CA423705A/fr
Expired legal-status Critical Current

Links

CA423705A Systeme telephonique Expired CA423705A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA423705T

Publications (1)

Publication Number Publication Date
CA423705A true CA423705A (fr) 1944-11-07

Family

ID=35534713

Family Applications (1)

Application Number Title Priority Date Filing Date
CA423705A Expired CA423705A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA423705A (fr)

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