CA409220A - Electric signalling system - Google Patents

Electric signalling system

Info

Publication number
CA409220A
CA409220A CA409220A CA409220DA CA409220A CA 409220 A CA409220 A CA 409220A CA 409220 A CA409220 A CA 409220A CA 409220D A CA409220D A CA 409220DA CA 409220 A CA409220 A CA 409220A
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
CA409220A
Other languages
French (fr)
Inventor
Maurice Deloraine Edmond
Harley Reeves Alex
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Publication date
Application granted granted Critical
Publication of CA409220A publication Critical patent/CA409220A/en
Expired legal-status Critical Current

Links

CA409220A Electric signalling system Expired CA409220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA409220T

Publications (1)

Publication Number Publication Date
CA409220A true CA409220A (en) 1942-12-08

Family

ID=35420521

Family Applications (1)

Application Number Title Priority Date Filing Date
CA409220A Expired CA409220A (en) Electric signalling system

Country Status (1)

Country Link
CA (1) CA409220A (en)

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