CA312217A - Signal lumineux - Google Patents

Signal lumineux

Info

Publication number
CA312217A
CA312217A CA312217A CA312217DA CA312217A CA 312217 A CA312217 A CA 312217A CA 312217 A CA312217 A CA 312217A CA 312217D A CA312217D A CA 312217DA CA 312217 A CA312217 A CA 312217A
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
CA312217A
Other languages
English (en)
Inventor
J. O'meara Thomas
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 CA312217A publication Critical patent/CA312217A/fr
Expired legal-status Critical Current

Links

CA312217A Signal lumineux Expired CA312217A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA312217T

Publications (1)

Publication Number Publication Date
CA312217A true CA312217A (fr) 1931-06-09

Family

ID=35271543

Family Applications (1)

Application Number Title Priority Date Filing Date
CA312217A Expired CA312217A (fr) Signal lumineux

Country Status (1)

Country Link
CA (1) CA312217A (fr)

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