CA414613A - Hydraulic drilling device - Google Patents

Hydraulic drilling device

Info

Publication number
CA414613A
CA414613A CA414613A CA414613DA CA414613A CA 414613 A CA414613 A CA 414613A CA 414613 A CA414613 A CA 414613A CA 414613D A CA414613D A CA 414613DA CA 414613 A CA414613 A CA 414613A
Authority
CA
Canada
Prior art keywords
drilling device
hydraulic drilling
hydraulic
drilling
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
CA414613A
Other languages
French (fr)
Inventor
Merten Eugen
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.)
Shell Development Co
Original Assignee
Shell Development Co
Publication date
Application granted granted Critical
Publication of CA414613A publication Critical patent/CA414613A/en
Expired legal-status Critical Current

Links

CA414613A Hydraulic drilling device Expired CA414613A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA414613T

Publications (1)

Publication Number Publication Date
CA414613A true CA414613A (en) 1943-08-17

Family

ID=35523807

Family Applications (1)

Application Number Title Priority Date Filing Date
CA414613A Expired CA414613A (en) Hydraulic drilling device

Country Status (1)

Country Link
CA (1) CA414613A (en)

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