CA218541A - Porte de mine - Google Patents

Porte de mine

Info

Publication number
CA218541A
CA218541A CA218541A CA218541DA CA218541A CA 218541 A CA218541 A CA 218541A CA 218541 A CA218541 A CA 218541A CA 218541D A CA218541D A CA 218541DA CA 218541 A CA218541 A CA 218541A
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
CA218541A
Other languages
English (en)
Inventor
K. Bowman Newton
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 CA218541A publication Critical patent/CA218541A/fr
Expired legal-status Critical Current

Links

CA218541A Porte de mine Expired CA218541A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA218541T

Publications (1)

Publication Number Publication Date
CA218541A true CA218541A (fr) 1922-05-16

Family

ID=35112985

Family Applications (1)

Application Number Title Priority Date Filing Date
CA218541A Expired CA218541A (fr) Porte de mine

Country Status (1)

Country Link
CA (1) CA218541A (fr)

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