CA387568A - Electric signalling system - Google Patents

Electric signalling system

Info

Publication number
CA387568A
CA387568A CA387568A CA387568DA CA387568A CA 387568 A CA387568 A CA 387568A CA 387568 A CA387568 A CA 387568A CA 387568D A CA387568D A CA 387568DA CA 387568 A CA387568 A CA 387568A
Authority
CA
Canada
Prior art keywords
signalling system
electric signalling
electric
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
CA387568A
Other languages
French (fr)
Inventor
G. Cooley Austin
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 CA387568A publication Critical patent/CA387568A/en
Expired legal-status Critical Current

Links

CA387568A Electric signalling system Expired CA387568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA387568T

Publications (1)

Publication Number Publication Date
CA387568A true CA387568A (en) 1940-03-19

Family

ID=35392769

Family Applications (1)

Application Number Title Priority Date Filing Date
CA387568A Expired CA387568A (en) Electric signalling system

Country Status (1)

Country Link
CA (1) CA387568A (en)

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