CA284398A - Light signal - Google Patents

Light signal

Info

Publication number
CA284398A
CA284398A CA284398A CA284398DA CA284398A CA 284398 A CA284398 A CA 284398A CA 284398 A CA284398 A CA 284398A CA 284398D A CA284398D A CA 284398DA CA 284398 A CA284398 A CA 284398A
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
CA284398A
Other languages
French (fr)
Inventor
M. Day Salisbury
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 CA284398A publication Critical patent/CA284398A/en
Expired legal-status Critical Current

Links

CA284398A Light signal Expired CA284398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA284398T

Publications (1)

Publication Number Publication Date
CA284398A true CA284398A (en) 1928-10-30

Family

ID=35217489

Family Applications (1)

Application Number Title Priority Date Filing Date
CA284398A Expired CA284398A (en) Light signal

Country Status (1)

Country Link
CA (1) CA284398A (en)

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