CA131889A - Mecanisme de controle de trafic de chemins de fer - Google Patents

Mecanisme de controle de trafic de chemins de fer

Info

Publication number
CA131889A
CA131889A CA000131889A CA131889DA CA131889A CA 131889 A CA131889 A CA 131889A CA 000131889 A CA000131889 A CA 000131889A CA 131889D A CA131889D A CA 131889DA CA 131889 A CA131889 A CA 131889A
Authority
CA
Canada
Prior art keywords
controlling mechanism
railway traffic
traffic controlling
railway
traffic
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
CA000131889A
Other languages
English (en)
Inventor
Katherine Coleman
Clarence William Coleman
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.)
Hall Signal Co
Original Assignee
Hall Signal Co
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 Hall Signal Co filed Critical Hall Signal Co
Application granted granted Critical
Publication of CA131889A publication Critical patent/CA131889A/fr
Expired legal-status Critical Current

Links

CA000131889A 1911-01-16 1911-01-16 Mecanisme de controle de trafic de chemins de fer Expired CA131889A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA131889T 1911-01-16

Publications (1)

Publication Number Publication Date
CA131889A true CA131889A (fr) 1911-03-28

Family

ID=45251609

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000131889A Expired CA131889A (fr) 1911-01-16 1911-01-16 Mecanisme de controle de trafic de chemins de fer

Country Status (1)

Country Link
CA (1) CA131889A (fr)

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