CA33041A - Electric semaphore - Google Patents

Electric semaphore

Info

Publication number
CA33041A
CA33041A CA000033041A CA33041DA CA33041A CA 33041 A CA33041 A CA 33041A CA 000033041 A CA000033041 A CA 000033041A CA 33041D A CA33041D A CA 33041DA CA 33041 A CA33041 A CA 33041A
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
CA000033041A
Other languages
French (fr)
Inventor
Charles Weinedel
Frederick Stitzel
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.)
AMERICAN SEMAPHORE Co
Original Assignee
AMERICAN SEMAPHORE Co
Publication date
Application granted granted Critical
Publication of CA33041A publication Critical patent/CA33041A/en
Expired legal-status Critical Current

Links

CA000033041A Electric semaphore Expired CA33041A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA33041T

Publications (1)

Publication Number Publication Date
CA33041A true CA33041A (en) 1889-12-04

Family

ID=45149581

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000033041A Expired CA33041A (en) Electric semaphore

Country Status (1)

Country Link
CA (1) CA33041A (en)

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