CA431879A - Railway traffic controlling apparatus - Google Patents

Railway traffic controlling apparatus

Info

Publication number
CA431879A
CA431879A CA431879A CA431879DA CA431879A CA 431879 A CA431879 A CA 431879A CA 431879 A CA431879 A CA 431879A CA 431879D A CA431879D A CA 431879DA CA 431879 A CA431879 A CA 431879A
Authority
CA
Canada
Prior art keywords
controlling apparatus
railway traffic
traffic controlling
railway
traffic
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
CA431879A
Other languages
French (fr)
Inventor
H. Nicholson Frank
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 CA431879A publication Critical patent/CA431879A/en
Expired legal-status Critical Current

Links

CA431879A Railway traffic controlling apparatus Expired CA431879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA431879T

Publications (1)

Publication Number Publication Date
CA431879A true CA431879A (en) 1945-12-11

Family

ID=35546927

Family Applications (1)

Application Number Title Priority Date Filing Date
CA431879A Expired CA431879A (en) Railway traffic controlling apparatus

Country Status (1)

Country Link
CA (1) CA431879A (en)

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