CA397700A - Light signal apparatus - Google Patents

Light signal apparatus

Info

Publication number
CA397700A
CA397700A CA397700A CA397700DA CA397700A CA 397700 A CA397700 A CA 397700A CA 397700 A CA397700 A CA 397700A CA 397700D A CA397700D A CA 397700DA CA 397700 A CA397700 A CA 397700A
Authority
CA
Canada
Prior art keywords
light signal
signal apparatus
light
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
CA397700A
Other languages
French (fr)
Inventor
B. Wells Wesley
K. Lockhart William
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 CA397700A publication Critical patent/CA397700A/en
Expired legal-status Critical Current

Links

CA397700A Light signal apparatus Expired CA397700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA397700T

Publications (1)

Publication Number Publication Date
CA397700A true CA397700A (en) 1941-07-01

Family

ID=35408213

Family Applications (1)

Application Number Title Priority Date Filing Date
CA397700A Expired CA397700A (en) Light signal apparatus

Country Status (1)

Country Link
CA (1) CA397700A (en)

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