CA218950A - Systeme de signaux - Google Patents

Systeme de signaux

Info

Publication number
CA218950A
CA218950A CA218950A CA218950DA CA218950A CA 218950 A CA218950 A CA 218950A CA 218950 A CA218950 A CA 218950A CA 218950D A CA218950D A CA 218950DA CA 218950 A CA218950 A CA 218950A
Authority
CA
Canada
Prior art keywords
signalling system
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
CA218950A
Other languages
English (en)
Inventor
Ruchner Murphy Paul
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 WESTERN ELECTRIC Co
Original Assignee
INTERNATIONAL WESTERN ELECTRIC Co
Publication date
Application granted granted Critical
Publication of CA218950A publication Critical patent/CA218950A/fr
Expired legal-status Critical Current

Links

CA218950A Systeme de signaux Expired CA218950A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA218950T

Publications (1)

Publication Number Publication Date
CA218950A true CA218950A (fr) 1922-05-23

Family

ID=35113394

Family Applications (1)

Application Number Title Priority Date Filing Date
CA218950A Expired CA218950A (fr) Systeme de signaux

Country Status (1)

Country Link
CA (1) CA218950A (fr)

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