CA374398A - Foreuse a puits - Google Patents

Foreuse a puits

Info

Publication number
CA374398A
CA374398A CA374398A CA374398DA CA374398A CA 374398 A CA374398 A CA 374398A CA 374398 A CA374398 A CA 374398A CA 374398D A CA374398D A CA 374398DA CA 374398 A CA374398 A CA 374398A
Authority
CA
Canada
Prior art keywords
shaft drill
drill
shaft
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
CA374398A
Other languages
English (en)
Inventor
Branner Newsom 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.)
IDAHO MARYLAND MINES Corp
Original Assignee
IDAHO MARYLAND MINES Corp
Publication date
Application granted granted Critical
Publication of CA374398A publication Critical patent/CA374398A/fr
Expired legal-status Critical Current

Links

CA374398A Foreuse a puits Expired CA374398A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA374398T

Publications (1)

Publication Number Publication Date
CA374398A true CA374398A (fr) 1938-06-14

Family

ID=35378722

Family Applications (1)

Application Number Title Priority Date Filing Date
CA374398A Expired CA374398A (fr) Foreuse a puits

Country Status (1)

Country Link
CA (1) CA374398A (fr)

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