CA496169A - Electric signalling systems - Google Patents

Electric signalling systems

Info

Publication number
CA496169A
CA496169A CA496169A CA496169DA CA496169A CA 496169 A CA496169 A CA 496169A CA 496169 A CA496169 A CA 496169A CA 496169D A CA496169D A CA 496169DA CA 496169 A CA496169 A CA 496169A
Authority
CA
Canada
Prior art keywords
signalling systems
electric signalling
electric
systems
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
CA496169A
Other languages
French (fr)
Inventor
A. Christian David
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Publication date
Application granted granted Critical
Publication of CA496169A publication Critical patent/CA496169A/en
Expired legal-status Critical Current

Links

CA496169A Electric signalling systems Expired CA496169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA496169T

Publications (1)

Publication Number Publication Date
CA496169A true CA496169A (en) 1953-09-15

Family

ID=35641589

Family Applications (1)

Application Number Title Priority Date Filing Date
CA496169A Expired CA496169A (en) Electric signalling systems

Country Status (1)

Country Link
CA (1) CA496169A (en)

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