CA402042A - Methode a forer des puits - Google Patents

Methode a forer des puits

Info

Publication number
CA402042A
CA402042A CA402042A CA402042DA CA402042A CA 402042 A CA402042 A CA 402042A CA 402042 A CA402042 A CA 402042A CA 402042D A CA402042D A CA 402042DA CA 402042 A CA402042 A CA 402042A
Authority
CA
Canada
Prior art keywords
sinking method
shaft sinking
shaft
sinking
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
CA402042A
Other languages
English (en)
Inventor
Branner Newson 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 CA402042A publication Critical patent/CA402042A/fr
Expired legal-status Critical Current

Links

CA402042A Methode a forer des puits Expired CA402042A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA402042T

Publications (1)

Publication Number Publication Date
CA402042A true CA402042A (fr) 1942-01-06

Family

ID=35412487

Family Applications (1)

Application Number Title Priority Date Filing Date
CA402042A Expired CA402042A (fr) Methode a forer des puits

Country Status (1)

Country Link
CA (1) CA402042A (fr)

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