CA309374A - Signal de passage a niveau - Google Patents

Signal de passage a niveau

Info

Publication number
CA309374A
CA309374A CA309374A CA309374DA CA309374A CA 309374 A CA309374 A CA 309374A CA 309374 A CA309374 A CA 309374A CA 309374D A CA309374D A CA 309374DA CA 309374 A CA309374 A CA 309374A
Authority
CA
Canada
Prior art keywords
crossing signal
crossing
signal
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
CA309374A
Other languages
English (en)
Inventor
Spokane John A. Morrison
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.)
SAFETY SIGNAL Co
Original Assignee
SAFETY SIGNAL Co
Publication date
Application granted granted Critical
Publication of CA309374A publication Critical patent/CA309374A/fr
Expired legal-status Critical Current

Links

CA309374A Signal de passage a niveau Expired CA309374A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA309374T

Publications (1)

Publication Number Publication Date
CA309374A true CA309374A (fr) 1931-03-10

Family

ID=35268697

Family Applications (1)

Application Number Title Priority Date Filing Date
CA309374A Expired CA309374A (fr) Signal de passage a niveau

Country Status (1)

Country Link
CA (1) CA309374A (fr)

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