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Inventor
BRECKENFELD TED JAMES
US
2 patents
Patents
2 patents
US10590525B2
Mar 17, 2020
Modified surface properties of percussion tools used in downhole drilling
VAREL INT IND LP
0 citations
39
US9951409B2
Apr 24, 2018
Modified surface properties of percussion tools used in downhole drilling
VAREL INT IND LP
0 citations
39