ATE39538T1 - DRILLING DEVICE FOR EARTH DRILLING. - Google Patents

DRILLING DEVICE FOR EARTH DRILLING.

Info

Publication number
ATE39538T1
ATE39538T1 AT83304298T AT83304298T ATE39538T1 AT E39538 T1 ATE39538 T1 AT E39538T1 AT 83304298 T AT83304298 T AT 83304298T AT 83304298 T AT83304298 T AT 83304298T AT E39538 T1 ATE39538 T1 AT E39538T1
Authority
AT
Austria
Prior art keywords
drilling
earth
drilling device
earth drilling
Prior art date
Application number
AT83304298T
Other languages
German (de)
Inventor
Iii Ben Wade Oakes Dickinson
Robert Wayne Dickinson
Stanley O Hutchison
Sherman C May
Charles S Mackey
Original Assignee
Dickinson Ben Wade O Iii
Dickinson Robert W
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US06/471,437 external-priority patent/US4527639A/en
Application filed by Dickinson Ben Wade O Iii, Dickinson Robert W filed Critical Dickinson Ben Wade O Iii
Priority claimed from EP83304298A external-priority patent/EP0100230B1/en
Application granted granted Critical
Publication of ATE39538T1 publication Critical patent/ATE39538T1/en

Links

AT83304298T 1982-07-26 1983-07-25 DRILLING DEVICE FOR EARTH DRILLING. ATE39538T1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US40161382A 1982-07-26 1982-07-26
US47143083A 1983-03-02 1983-03-02
US06/471,437 US4527639A (en) 1982-07-26 1983-03-02 Hydraulic piston-effect method and apparatus for forming a bore hole
EP83304298A EP0100230B1 (en) 1982-07-26 1983-07-25 Earth boring apparatus

Publications (1)

Publication Number Publication Date
ATE39538T1 true ATE39538T1 (en) 1989-01-15

Family

ID=27440547

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83304298T ATE39538T1 (en) 1982-07-26 1983-07-25 DRILLING DEVICE FOR EARTH DRILLING.

Country Status (1)

Country Link
AT (1) ATE39538T1 (en)

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee