CA533592A - Systemes telephoniques - Google Patents

Systemes telephoniques

Info

Publication number
CA533592A
CA533592A CA533592A CA533592DA CA533592A CA 533592 A CA533592 A CA 533592A CA 533592 A CA533592 A CA 533592A CA 533592D A CA533592D A CA 533592DA CA 533592 A CA533592 A CA 533592A
Authority
CA
Canada
Prior art keywords
telephone systems
telephone
systems
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
CA533592A
Other languages
English (en)
Inventor
H. T. Holden William
F. Lewis Benjamin
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 CA533592A publication Critical patent/CA533592A/fr
Expired legal-status Critical Current

Links

CA533592A Systemes telephoniques Expired CA533592A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA533592T

Publications (1)

Publication Number Publication Date
CA533592A true CA533592A (fr) 1956-11-20

Family

ID=35688212

Family Applications (1)

Application Number Title Priority Date Filing Date
CA533592A Expired CA533592A (fr) Systemes telephoniques

Country Status (1)

Country Link
CA (1) CA533592A (fr)

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