CA275331A - Systeme de signalisation - Google Patents

Systeme de signalisation

Info

Publication number
CA275331A
CA275331A CA275331A CA275331DA CA275331A CA 275331 A CA275331 A CA 275331A CA 275331 A CA275331 A CA 275331A CA 275331D A CA275331D A CA 275331DA CA 275331 A CA275331 A CA 275331A
Authority
CA
Canada
Prior art keywords
signalling system
signalling
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
CA275331A
Other languages
English (en)
Inventor
B. Murphy Paul
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 CA275331A publication Critical patent/CA275331A/fr
Expired legal-status Critical Current

Links

CA275331A Systeme de signalisation Expired CA275331A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA275331T

Publications (1)

Publication Number Publication Date
CA275331A true CA275331A (fr) 1927-11-08

Family

ID=35205363

Family Applications (1)

Application Number Title Priority Date Filing Date
CA275331A Expired CA275331A (fr) Systeme de signalisation

Country Status (1)

Country Link
CA (1) CA275331A (fr)

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