CA140872A - Signal pour portes - Google Patents

Signal pour portes

Info

Publication number
CA140872A
CA140872A CA000140872A CA140872DA CA140872A CA 140872 A CA140872 A CA 140872A CA 000140872 A CA000140872 A CA 000140872A CA 140872D A CA140872D A CA 140872DA CA 140872 A CA140872 A CA 140872A
Authority
CA
Canada
Prior art keywords
doors
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
CA000140872A
Other languages
English (en)
Inventor
Ramando Davis
R. Fred Davis
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
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA140872A publication Critical patent/CA140872A/fr
Expired legal-status Critical Current

Links

CA000140872A 1912-02-14 1912-02-14 Signal pour portes Expired CA140872A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA140872T 1912-02-14

Publications (1)

Publication Number Publication Date
CA140872A true CA140872A (fr) 1912-06-04

Family

ID=45260588

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000140872A Expired CA140872A (fr) 1912-02-14 1912-02-14 Signal pour portes

Country Status (1)

Country Link
CA (1) CA140872A (fr)

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