| http://www.w3.org/ns/prov#value | - S548023314 oct. 19942 janv. 1996Cunningham; James K.Thrust bearing for use in downhole drilling systemsUS20070081749 *11 oct. 200512 avr. 2007Sexton Timothy NBearing apparatuses, systems including same, and related methods* Cit??? par l'examinateur R???f???renc??? par Brevet citant Date de d???p???t Date de publication D???posant TitreUS7759815 *25 nov. 200520 juil. 2010Nordex Energy GmbhWind moto
|