CA289531A - Railway traffic controlling apparatus - Google Patents

Railway traffic controlling apparatus

Info

Publication number
CA289531A
CA289531A CA289531A CA289531DA CA289531A CA 289531 A CA289531 A CA 289531A CA 289531 A CA289531 A CA 289531A CA 289531D A CA289531D A CA 289531DA CA 289531 A CA289531 A CA 289531A
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
CA289531A
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 CA289531A publication Critical patent/CA289531A/en
Expired legal-status Critical Current

Links

CA289531A Railway traffic controlling apparatus Expired CA289531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA289531T

Publications (1)

Publication Number Publication Date
CA289531A true CA289531A (en) 1929-05-07

Family

ID=35226343

Family Applications (1)

Application Number Title Priority Date Filing Date
CA289531A Expired CA289531A (en) Railway traffic controlling apparatus

Country Status (1)

Country Link
CA (1) CA289531A (en)

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