CA504705A - Systemes de commande de signalisation de chemins de fer - Google Patents

Systemes de commande de signalisation de chemins de fer

Info

Publication number
CA504705A
CA504705A CA504705A CA504705DA CA504705A CA 504705 A CA504705 A CA 504705A CA 504705 A CA504705 A CA 504705A CA 504705D A CA504705D A CA 504705DA CA 504705 A CA504705 A CA 504705A
Authority
CA
Canada
Prior art keywords
control systems
signal control
railway signal
railway
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
CA504705A
Other languages
English (en)
Inventor
Frederick T. Fereday, Sr.
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.)
Hitachi Rail STS USA Inc
Original Assignee
Union Switch and Signal Inc
Publication date
Application granted granted Critical
Publication of CA504705A publication Critical patent/CA504705A/fr
Expired legal-status Critical Current

Links

CA504705A Systemes de commande de signalisation de chemins de fer Expired CA504705A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA504705T

Publications (1)

Publication Number Publication Date
CA504705A true CA504705A (fr) 1954-07-27

Family

ID=35650627

Family Applications (1)

Application Number Title Priority Date Filing Date
CA504705A Expired CA504705A (fr) Systemes de commande de signalisation de chemins de fer

Country Status (1)

Country Link
CA (1) CA504705A (fr)

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