CA438269A - Light signal - Google Patents

Light signal

Info

Publication number
CA438269A
CA438269A CA438269A CA438269DA CA438269A CA 438269 A CA438269 A CA 438269A CA 438269 A CA438269 A CA 438269A CA 438269D A CA438269D A CA 438269DA CA 438269 A CA438269 A CA 438269A
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
CA438269A
Other languages
French (fr)
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 CA438269A publication Critical patent/CA438269A/en
Expired legal-status Critical Current

Links

CA438269A Light signal Expired CA438269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA438269T

Publications (1)

Publication Number Publication Date
CA438269A true CA438269A (en) 1946-11-26

Family

ID=35553504

Family Applications (1)

Application Number Title Priority Date Filing Date
CA438269A Expired CA438269A (en) Light signal

Country Status (1)

Country Link
CA (1) CA438269A (en)

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