CA287392A - Systeme de signalisation - Google Patents

Systeme de signalisation

Info

Publication number
CA287392A
CA287392A CA287392A CA287392DA CA287392A CA 287392 A CA287392 A CA 287392A CA 287392 A CA287392 A CA 287392A CA 287392D A CA287392D A CA 287392DA CA 287392 A CA287392 A CA 287392A
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
CA287392A
Other languages
English (en)
Inventor
B. Kerr Mark
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 CA287392A publication Critical patent/CA287392A/fr
Expired legal-status Critical Current

Links

CA287392A Systeme de signalisation Expired CA287392A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA287392T

Publications (1)

Publication Number Publication Date
CA287392A true CA287392A (fr) 1929-02-19

Family

ID=35224204

Family Applications (1)

Application Number Title Priority Date Filing Date
CA287392A Expired CA287392A (fr) Systeme de signalisation

Country Status (1)

Country Link
CA (1) CA287392A (fr)

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