CA72485A - Mine door - Google Patents

Mine door

Info

Publication number
CA72485A
CA72485A CA000072485A CA72485DA CA72485A CA 72485 A CA72485 A CA 72485A CA 000072485 A CA000072485 A CA 000072485A CA 72485D A CA72485D A CA 72485DA CA 72485 A CA72485 A CA 72485A
Authority
CA
Canada
Prior art keywords
mine door
mine
door
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
CA000072485A
Other languages
French (fr)
Inventor
Thomas Boardman
William W. Bradley
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 CA72485A publication Critical patent/CA72485A/en
Expired legal-status Critical Current

Links

CA000072485A 1901-07-11 1901-07-11 Mine door Expired CA72485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA72485T 1901-07-11

Publications (1)

Publication Number Publication Date
CA72485A true CA72485A (en) 1901-07-30

Family

ID=45189022

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000072485A Expired CA72485A (en) 1901-07-11 1901-07-11 Mine door

Country Status (1)

Country Link
CA (1) CA72485A (en)

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