CA311440A - Light-sign and signalling apparatus - Google Patents

Light-sign and signalling apparatus

Info

Publication number
CA311440A
CA311440A CA311440A CA311440DA CA311440A CA 311440 A CA311440 A CA 311440A CA 311440 A CA311440 A CA 311440A CA 311440D A CA311440D A CA 311440DA CA 311440 A CA311440 A CA 311440A
Authority
CA
Canada
Prior art keywords
sign
light
signalling apparatus
signalling
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
CA311440A
Other languages
French (fr)
Inventor
Lobl Arnold
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA311440A publication Critical patent/CA311440A/en
Expired legal-status Critical Current

Links

CA311440A Light-sign and signalling apparatus Expired CA311440A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA311440T

Publications (1)

Publication Number Publication Date
CA311440A true CA311440A (en) 1931-05-19

Family

ID=35270765

Family Applications (1)

Application Number Title Priority Date Filing Date
CA311440A Expired CA311440A (en) Light-sign and signalling apparatus

Country Status (1)

Country Link
CA (1) CA311440A (en)

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