UTENSILI A RULLI CON SCANALATURA LARGA
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Year of Publication 06.02.2006
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Year of Publication 06.02.2006
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Earth-boring bit having shear-cutting heel elements
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Year of Publication 29.10.2003
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Year of Publication 29.10.2003
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Shirttails for reducing damaging effects of cuttings
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Year of Publication 21.12.2006
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Year of Publication 21.12.2006
Patent
Earth-boring bit having shear-cutting heel elements
PESSIER, RUDOLF C.O, MEANY, NIGEL, ISBELL, MATTHEW R, BESSON, ALAIN, SCOTT, DANNY E
Year of Publication 11.12.1996
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Year of Publication 11.12.1996
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Rotary drill bits for directional drilling exhibiting variable weight-on-bit dependent cutting characteristics
FINCHER ROGER, PESSIER RUDOLF C.O, ILLERHAUS ROLAND, MATSON STEVE R, NORRIS JAMES A, BEUERSHAUSEN CHRISTOPHER C, DYKSTRA MARK W, OHANIAN MICHAEL P
Year of Publication 18.10.2001
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Year of Publication 18.10.2001
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STRUCTURE DE FORAGE DE FORMATIONS SOUTERRAINES
PESSIER RUDOLF C.O, ISBELL MATTHEW R, DOSTER MICHAEL L, DYKSTRA MARK W, HEUSER WILLIAM H
Year of Publication 01.06.2004
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Year of Publication 01.06.2004
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