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Inventor
HARDIE RONNIE
GB
3 patents
Patents
3 patents
US6279670B1
Aug 28, 2001
Downhole flow pulsing apparatus
ANDERGAUGE LTD
193 citations
96
US6508317B2
Jan 21, 2003
Downhole apparatus and method of use
ANDERGAUGE LTD
79 citations
95
US6431294B1
Aug 13, 2002
Percussive tool
ANDERGAUGE LTD
39 citations
90