CA222260A - Signalling system - Google Patents

Signalling system

Info

Publication number
CA222260A
CA222260A CA222260A CA222260DA CA222260A CA 222260 A CA222260 A CA 222260A CA 222260 A CA222260 A CA 222260A CA 222260D A CA222260D A CA 222260DA CA 222260 A CA222260 A CA 222260A
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
CA222260A
Other languages
French (fr)
Inventor
P. Sparboom Walter
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA222260A publication Critical patent/CA222260A/en
Expired legal-status Critical Current

Links

CA222260A Signalling system Expired CA222260A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA222260T

Publications (1)

Publication Number Publication Date
CA222260A true CA222260A (en) 1922-08-15

Family

ID=35117863

Family Applications (1)

Application Number Title Priority Date Filing Date
CA222260A Expired CA222260A (en) Signalling system

Country Status (1)

Country Link
CA (1) CA222260A (en)

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