Inventor
MCDONALD BART T
US2 patents
Patents
2 patentsUS5765653AJun 16, 1998
Reaming apparatus and method with enhanced stability and transition from pilot hole to enlarged bore diameter
BAKER HUGHES INC141 citations96
US6116356ASep 12, 2000
Reaming apparatus and method with enhanced stability and transition from pilot hole to enlarged bore diameter
BAKER HUGHES INC58 citations94