CA370458A - Mine door operator - Google Patents

Mine door operator

Info

Publication number
CA370458A
CA370458A CA370458A CA370458DA CA370458A CA 370458 A CA370458 A CA 370458A CA 370458 A CA370458 A CA 370458A CA 370458D A CA370458D A CA 370458DA CA 370458 A CA370458 A CA 370458A
Authority
CA
Canada
Prior art keywords
door operator
mine door
mine
operator
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
CA370458A
Other languages
French (fr)
Inventor
M. Sobat Dane
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 CA370458A publication Critical patent/CA370458A/en
Expired legal-status Critical Current

Links

CA370458A Mine door operator Expired CA370458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA370458T

Publications (1)

Publication Number Publication Date
CA370458A true CA370458A (en) 1937-12-07

Family

ID=35371524

Family Applications (1)

Application Number Title Priority Date Filing Date
CA370458A Expired CA370458A (en) Mine door operator

Country Status (1)

Country Link
CA (1) CA370458A (en)

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