CA308575A - Signal lumineux - Google Patents

Signal lumineux

Info

Publication number
CA308575A
CA308575A CA308575A CA308575DA CA308575A CA 308575 A CA308575 A CA 308575A CA 308575 A CA308575 A CA 308575A CA 308575D A CA308575D A CA 308575DA CA 308575 A CA308575 A CA 308575A
Authority
CA
Canada
Prior art keywords
light signal
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
CA308575A
Other languages
English (en)
Inventor
B. Wells Wesley
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 CA308575A publication Critical patent/CA308575A/fr
Expired legal-status Critical Current

Links

CA308575A Signal lumineux Expired CA308575A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA308575T

Publications (1)

Publication Number Publication Date
CA308575A true CA308575A (fr) 1931-02-10

Family

ID=35261728

Family Applications (1)

Application Number Title Priority Date Filing Date
CA308575A Expired CA308575A (fr) Signal lumineux

Country Status (1)

Country Link
CA (1) CA308575A (fr)

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