CA181658A - Systeme de signaux - Google Patents

Systeme de signaux

Info

Publication number
CA181658A
CA181658A CA000181658A CA181658DA CA181658A CA 181658 A CA181658 A CA 181658A CA 000181658 A CA000181658 A CA 000181658A CA 181658D A CA181658D A CA 181658DA CA 181658 A CA181658 A CA 181658A
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
CA000181658A
Other languages
English (en)
Inventor
Stanley S.A. Watkins
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA181658A publication Critical patent/CA181658A/fr
Expired legal-status Critical Current

Links

CA000181658A 1917-02-20 1917-02-20 Systeme de signaux Expired CA181658A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA181658T 1917-02-20

Publications (1)

Publication Number Publication Date
CA181658A true CA181658A (fr) 1918-01-15

Family

ID=45301310

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000181658A Expired CA181658A (fr) 1917-02-20 1917-02-20 Systeme de signaux

Country Status (1)

Country Link
CA (1) CA181658A (fr)

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