CA298656A - Signal lumineux - Google Patents

Signal lumineux

Info

Publication number
CA298656A
CA298656A CA298656A CA298656DA CA298656A CA 298656 A CA298656 A CA 298656A CA 298656 A CA298656 A CA 298656A CA 298656D A CA298656D A CA 298656DA CA 298656 A CA298656 A CA 298656A
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
CA298656A
Other languages
English (en)
Inventor
S. Field Oscar
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.)
SPX Technologies Inc
Original Assignee
General Railway Signal Co
Publication date
Application granted granted Critical
Publication of CA298656A publication Critical patent/CA298656A/fr
Expired legal-status Critical Current

Links

CA298656A Signal lumineux Expired CA298656A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA298656T

Publications (1)

Publication Number Publication Date
CA298656A true CA298656A (fr) 1930-03-25

Family

ID=35235975

Family Applications (1)

Application Number Title Priority Date Filing Date
CA298656A Expired CA298656A (fr) Signal lumineux

Country Status (1)

Country Link
CA (1) CA298656A (fr)

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