CA218156A - Signal des tours d'inspection de gardien - Google Patents

Signal des tours d'inspection de gardien

Info

Publication number
CA218156A
CA218156A CA218156A CA218156DA CA218156A CA 218156 A CA218156 A CA 218156A CA 218156 A CA218156 A CA 218156A CA 218156D A CA218156D A CA 218156DA CA 218156 A CA218156 A CA 218156A
Authority
CA
Canada
Prior art keywords
watchmen
tour
signal
tour signal
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
CA218156A
Other languages
English (en)
Inventor
C. Johnson Clarence
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 CA218156A publication Critical patent/CA218156A/fr
Expired legal-status Critical Current

Links

CA218156A Signal des tours d'inspection de gardien Expired CA218156A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA218156T

Publications (1)

Publication Number Publication Date
CA218156A true CA218156A (fr) 1922-05-02

Family

ID=35112600

Family Applications (1)

Application Number Title Priority Date Filing Date
CA218156A Expired CA218156A (fr) Signal des tours d'inspection de gardien

Country Status (1)

Country Link
CA (1) CA218156A (fr)

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