CA542858A - Highway crossing protection control apparatus - Google Patents

Highway crossing protection control apparatus

Info

Publication number
CA542858A
CA542858A CA542858A CA542858DA CA542858A CA 542858 A CA542858 A CA 542858A CA 542858 A CA542858 A CA 542858A CA 542858D A CA542858D A CA 542858DA CA 542858 A CA542858 A CA 542858A
Authority
CA
Canada
Prior art keywords
control apparatus
protection control
highway crossing
crossing protection
highway
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
CA542858A
Other languages
French (fr)
Inventor
J. Schaefer Edwin
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.)
Westinghouse Air Brake Co
Original Assignee
Westinghouse Air Brake Co
Publication date
Application granted granted Critical
Publication of CA542858A publication Critical patent/CA542858A/en
Expired legal-status Critical Current

Links

CA542858A Highway crossing protection control apparatus Expired CA542858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA542858T

Publications (1)

Publication Number Publication Date
CA542858A true CA542858A (en) 1957-06-25

Family

ID=35700018

Family Applications (1)

Application Number Title Priority Date Filing Date
CA542858A Expired CA542858A (en) Highway crossing protection control apparatus

Country Status (1)

Country Link
CA (1) CA542858A (en)

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