CA479380A - Appareil de protection de trafic - Google Patents

Appareil de protection de trafic

Info

Publication number
CA479380A
CA479380A CA479380A CA479380DA CA479380A CA 479380 A CA479380 A CA 479380A CA 479380 A CA479380 A CA 479380A CA 479380D A CA479380D A CA 479380DA CA 479380 A CA479380 A CA 479380A
Authority
CA
Canada
Prior art keywords
protection apparatus
traffic protection
traffic
protection
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
CA479380A
Other languages
English (en)
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 CA479380A publication Critical patent/CA479380A/fr
Expired legal-status Critical Current

Links

CA479380A Appareil de protection de trafic Expired CA479380A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA479380T

Publications (1)

Publication Number Publication Date
CA479380A true CA479380A (fr) 1951-12-11

Family

ID=35619050

Family Applications (1)

Application Number Title Priority Date Filing Date
CA479380A Expired CA479380A (fr) Appareil de protection de trafic

Country Status (1)

Country Link
CA (1) CA479380A (fr)

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