Downhold mud motor and transmission
A Standard patent application filed on 14 January 2002 credited to Richards, Daniel J.
;
Blair, Paris E.
;
Ficken, Joseph L.
Details
Application number :
2002236761
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Downhold mud motor and transmission
Inventor :
Richards, Daniel J.
;
Blair, Paris E.
;
Ficken, Joseph L.