CA69577A - Porte de mines - Google Patents

Porte de mines

Info

Publication number
CA69577A
CA69577A CA000069577A CA69577DA CA69577A CA 69577 A CA69577 A CA 69577A CA 000069577 A CA000069577 A CA 000069577A CA 69577D A CA69577D A CA 69577DA CA 69577 A CA69577 A CA 69577A
Authority
CA
Canada
Prior art keywords
trap door
mine trap
mine
door
trap
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
CA000069577A
Other languages
English (en)
Inventor
Alvin Hurford
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 CA69577A publication Critical patent/CA69577A/fr
Expired legal-status Critical Current

Links

CA000069577A 1899-12-06 1899-12-06 Porte de mines Expired CA69577A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA69577T 1899-12-06

Publications (1)

Publication Number Publication Date
CA69577A true CA69577A (fr) 1900-12-04

Family

ID=45186115

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000069577A Expired CA69577A (fr) 1899-12-06 1899-12-06 Porte de mines

Country Status (1)

Country Link
CA (1) CA69577A (fr)

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