CA229713A - Signalling device - Google Patents

Signalling device

Info

Publication number
CA229713A
CA229713A CA229713A CA229713DA CA229713A CA 229713 A CA229713 A CA 229713A CA 229713 A CA229713 A CA 229713A CA 229713D A CA229713D A CA 229713DA CA 229713 A CA229713 A CA 229713A
Authority
CA
Canada
Prior art keywords
signalling device
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
CA229713A
Other languages
French (fr)
Inventor
C. Frieman Jacob
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 CA229713A publication Critical patent/CA229713A/en
Expired legal-status Critical Current

Links

CA229713A Signalling device Expired CA229713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA229713T

Publications (1)

Publication Number Publication Date
CA229713A true CA229713A (en) 1923-03-20

Family

ID=35127086

Family Applications (1)

Application Number Title Priority Date Filing Date
CA229713A Expired CA229713A (en) Signalling device

Country Status (1)

Country Link
CA (1) CA229713A (en)

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