CA459549A - Systeme de telephone a postes groupes - Google Patents

Systeme de telephone a postes groupes

Info

Publication number
CA459549A
CA459549A CA459549A CA459549DA CA459549A CA 459549 A CA459549 A CA 459549A CA 459549 A CA459549 A CA 459549A CA 459549D A CA459549D A CA 459549DA CA 459549 A CA459549 A CA 459549A
Authority
CA
Canada
Prior art keywords
telephone system
line telephone
party line
party
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
CA459549A
Other languages
English (en)
Inventor
B. Retallack 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 Corp
Original Assignee
Western Electric Co Inc
Bell Telephone Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA459549A publication Critical patent/CA459549A/fr
Expired legal-status Critical Current

Links

CA459549A Systeme de telephone a postes groupes Expired CA459549A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA459549T

Publications (1)

Publication Number Publication Date
CA459549A true CA459549A (fr) 1949-09-06

Family

ID=35578414

Family Applications (1)

Application Number Title Priority Date Filing Date
CA459549A Expired CA459549A (fr) Systeme de telephone a postes groupes

Country Status (1)

Country Link
CA (1) CA459549A (fr)

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