CA216486A - Signalling system - Google Patents

Signalling system

Info

Publication number
CA216486A
CA216486A CA216486A CA216486DA CA216486A CA 216486 A CA216486 A CA 216486A CA 216486 A CA216486 A CA 216486A CA 216486D A CA216486D A CA 216486DA CA 216486 A CA216486 A CA 216486A
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
CA216486A
Other languages
French (fr)
Inventor
C. Field 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 WESTERN ELECTRIC CO
Original Assignee
INTERNATIONAL WESTERN ELECTRIC CO
Publication date
Application granted granted Critical
Publication of CA216486A publication Critical patent/CA216486A/en
Expired legal-status Critical Current

Links

CA216486A Signalling system Expired CA216486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA216486T

Publications (1)

Publication Number Publication Date
CA216486A true CA216486A (en) 1922-03-07

Family

ID=35110930

Family Applications (1)

Application Number Title Priority Date Filing Date
CA216486A Expired CA216486A (en) Signalling system

Country Status (1)

Country Link
CA (1) CA216486A (en)

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