CA450483A - Systeme de signalisation - Google Patents

Systeme de signalisation

Info

Publication number
CA450483A
CA450483A CA450483A CA450483DA CA450483A CA 450483 A CA450483 A CA 450483A CA 450483 A CA450483 A CA 450483A CA 450483D A CA450483D A CA 450483DA CA 450483 A CA450483 A CA 450483A
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
CA450483A
Other languages
English (en)
Inventor
S. Rhoads 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
American Telephone and Telegraph Co Inc
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA450483A publication Critical patent/CA450483A/fr
Expired legal-status Critical Current

Links

CA450483A Systeme de signalisation Expired CA450483A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA450483T

Publications (1)

Publication Number Publication Date
CA450483A true CA450483A (fr) 1948-08-10

Family

ID=35568201

Family Applications (1)

Application Number Title Priority Date Filing Date
CA450483A Expired CA450483A (fr) Systeme de signalisation

Country Status (1)

Country Link
CA (1) CA450483A (fr)

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