CA555992A - Systemes de signalisation electrique - Google Patents

Systemes de signalisation electrique

Info

Publication number
CA555992A
CA555992A CA555992A CA555992DA CA555992A CA 555992 A CA555992 A CA 555992A CA 555992 A CA555992 A CA 555992A CA 555992D A CA555992D A CA 555992DA CA 555992 A CA555992 A CA 555992A
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
CA555992A
Other languages
English (en)
Inventor
P. G. Wright Esmond
A. Weir Donald
Rice Joseph
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 CA555992A publication Critical patent/CA555992A/fr
Expired legal-status Critical Current

Links

CA555992A Systemes de signalisation electrique Expired CA555992A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA555992T

Publications (1)

Publication Number Publication Date
CA555992A true CA555992A (fr) 1958-04-15

Family

ID=35717411

Family Applications (1)

Application Number Title Priority Date Filing Date
CA555992A Expired CA555992A (fr) Systemes de signalisation electrique

Country Status (1)

Country Link
CA (1) CA555992A (fr)

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