EARTH-BORING ROTARY DRILL BITS INCLUDING BIT BODIES HAVING BORON CARBIDE PARTICLES IN ALUMINUM OR ALUMINUM-BASED ALLOY MATRIX MATERIALS, AND METHODS FOR FORMING SUCH BITS
摘要
申请公布号
EP2079898(A1)
申请公布日期
2009.07.22
申请号
EP20070839095
申请日期
2007.09.28
申请人
BAKER HUGHES INCORPORATED
发明人
CHOE, HEMAN;STEVENS, JOHN H.;WESTHOFF, JAMES C.;EASON, JIMMY W.;OVERSTREET, JAMES L.
