CA505012A - Systeme de commande de feu d'avertissement de chemin de fer - Google Patents

Systeme de commande de feu d'avertissement de chemin de fer

Info

Publication number
CA505012A
CA505012A CA505012A CA505012DA CA505012A CA 505012 A CA505012 A CA 505012A CA 505012 A CA505012 A CA 505012A CA 505012D A CA505012D A CA 505012DA CA 505012 A CA505012 A CA 505012A
Authority
CA
Canada
Prior art keywords
control system
light control
warning light
railway warning
railway
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
CA505012A
Other languages
English (en)
Inventor
C. Heehler Arthur
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.)
Pyle National Co
Original Assignee
Pyle National Co
Publication date
Application granted granted Critical
Publication of CA505012A publication Critical patent/CA505012A/fr
Expired legal-status Critical Current

Links

CA505012A Systeme de commande de feu d'avertissement de chemin de fer Expired CA505012A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA505012T

Publications (1)

Publication Number Publication Date
CA505012A true CA505012A (fr) 1954-08-10

Family

ID=35650932

Family Applications (1)

Application Number Title Priority Date Filing Date
CA505012A Expired CA505012A (fr) Systeme de commande de feu d'avertissement de chemin de fer

Country Status (1)

Country Link
CA (1) CA505012A (fr)

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