Earth boring bit | Patent Number 06655476
US 06655476 B2Filled DateOct 30, 2002
Priority DateFeb 23, 2001
Publication DateApr 17, 2003
Expiration DateDec 2, 2015
Inventor/ApplicantsBrent L. Groce
Willie H. Groce, Jr.
Brent L. Groce
Willie H. JR. Groce
Brian A. Groce
Brian A. JR. Groce
Willie H. Groce, Jr.
Brent L. Groce
Willie H. JR. Groce
Brian A. Groce
Brian A. JR. Groce
ExaminesSCHOEPPEL, ROGER J
Art Unit3672
Technology Center3600
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