CA490846A - Centralized traffic control systems - Google Patents

Centralized traffic control systems

Info

Publication number
CA490846A
CA490846A CA490846A CA490846DA CA490846A CA 490846 A CA490846 A CA 490846A CA 490846 A CA490846 A CA 490846A CA 490846D A CA490846D A CA 490846DA CA 490846 A CA490846 A CA 490846A
Authority
CA
Canada
Prior art keywords
control systems
traffic control
centralized traffic
centralized
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
CA490846A
Other languages
French (fr)
Inventor
H. Failor Franklin
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 CA490846A publication Critical patent/CA490846A/en
Expired legal-status Critical Current

Links

CA490846A Centralized traffic control systems Expired CA490846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA490846T

Publications (1)

Publication Number Publication Date
CA490846A true CA490846A (en) 1953-02-24

Family

ID=35630584

Family Applications (1)

Application Number Title Priority Date Filing Date
CA490846A Expired CA490846A (en) Centralized traffic control systems

Country Status (1)

Country Link
CA (1) CA490846A (en)

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