CA229610A - Signal par semaphore - Google Patents

Signal par semaphore

Info

Publication number
CA229610A
CA229610A CA229610A CA229610DA CA229610A CA 229610 A CA229610 A CA 229610A CA 229610 A CA229610 A CA 229610A CA 229610D A CA229610D A CA 229610DA CA 229610 A CA229610 A CA 229610A
Authority
CA
Canada
Prior art keywords
semaphore signal
semaphore
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
CA229610A
Other languages
English (en)
Inventor
L. Rockwell Robert
G. Howe Ernest
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.)
UNIVERSAL ELEVATED RAILWAY Co
Original Assignee
UNIVERSAL ELEVATED RAILWAY Co
Publication date
Application granted granted Critical
Publication of CA229610A publication Critical patent/CA229610A/fr
Expired legal-status Critical Current

Links

CA229610A Signal par semaphore Expired CA229610A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA229610T

Publications (1)

Publication Number Publication Date
CA229610A true CA229610A (fr) 1923-03-13

Family

ID=35126983

Family Applications (1)

Application Number Title Priority Date Filing Date
CA229610A Expired CA229610A (fr) Signal par semaphore

Country Status (1)

Country Link
CA (1) CA229610A (fr)

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