CA371980A - Mining jack - Google Patents

Mining jack

Info

Publication number
CA371980A
CA371980A CA371980A CA371980DA CA371980A CA 371980 A CA371980 A CA 371980A CA 371980 A CA371980 A CA 371980A CA 371980D A CA371980D A CA 371980DA CA 371980 A CA371980 A CA 371980A
Authority
CA
Canada
Prior art keywords
mining
jack
mining jack
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
CA371980A
Other languages
French (fr)
Inventor
G. W. Woolsey John
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 CA371980A publication Critical patent/CA371980A/en
Expired legal-status Critical Current

Links

CA371980A Mining jack Expired CA371980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA371980T

Publications (1)

Publication Number Publication Date
CA371980A true CA371980A (en) 1938-02-15

Family

ID=35373045

Family Applications (1)

Application Number Title Priority Date Filing Date
CA371980A Expired CA371980A (en) Mining jack

Country Status (1)

Country Link
CA (1) CA371980A (en)

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