申请人 |
VARCO I/P, INC.;LUCAS, BRIAN;GRANT, JAMES, SIMPSON;SCATES, RANDY, LEE;GARRETT, JAMES, CAVITT;LAMBERT, JEFF, A.;CALZADA, MARCO, ANTONIO;MCCLUNG III, GUY, LAMONT |
发明人 |
GRANT, JAMES, SIMPSON;SCATES, RANDY, LEE;GARRETT, JAMES, CAVITT;LAMBERT, JEFF, A.;CALZADA, MARCO, ANTONIO;MCCLUNG III, GUY, LAMONT |