CA379443A - Signal lumineux - Google Patents

Signal lumineux

Info

Publication number
CA379443A
CA379443A CA379443A CA379443DA CA379443A CA 379443 A CA379443 A CA 379443A CA 379443 A CA379443 A CA 379443A CA 379443D A CA379443D A CA 379443DA CA 379443 A CA379443 A CA 379443A
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
CA379443A
Other languages
English (en)
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 CA379443A publication Critical patent/CA379443A/fr
Expired legal-status Critical Current

Links

CA379443A Signal lumineux Expired CA379443A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA379443T

Publications (1)

Publication Number Publication Date
CA379443A true CA379443A (fr) 1939-02-07

Family

ID=35383768

Family Applications (1)

Application Number Title Priority Date Filing Date
CA379443A Expired CA379443A (fr) Signal lumineux

Country Status (1)

Country Link
CA (1) CA379443A (fr)

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