CA132740A - Electric semaphore - Google Patents

Electric semaphore

Info

Publication number
CA132740A
CA132740A CA000132740A CA132740DA CA132740A CA 132740 A CA132740 A CA 132740A CA 000132740 A CA000132740 A CA 000132740A CA 132740D A CA132740D A CA 132740DA CA 132740 A CA132740 A CA 132740A
Authority
CA
Canada
Prior art keywords
semaphore
electric semaphore
electric
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
CA000132740A
Other languages
French (fr)
Inventor
Valentine Irving Smart
Ramsay Gray Gage
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA132740A publication Critical patent/CA132740A/en
Expired legal-status Critical Current

Links

CA000132740A 1910-06-07 1910-06-07 Electric semaphore Expired CA132740A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA132740T 1910-06-07

Publications (1)

Publication Number Publication Date
CA132740A true CA132740A (en) 1911-05-02

Family

ID=45252460

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000132740A Expired CA132740A (en) 1910-06-07 1910-06-07 Electric semaphore

Country Status (1)

Country Link
CA (1) CA132740A (en)

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