77675847
Feb 23, 2009
Feb 15, 2011
Active Trademark
Ring-shaped packing materials used to pack oil and gas drilling equipment,comprised of milled steel
Metal GoodsRing shaped packing materials used to pack oil and gas drilling equipment, comprised of fabricated thermoplastic compounds, carbon-filled polytetrafluoroethylene (PTFE), hydrogenated nitrile rubber (HNBR), ultra-high molecular polyethylene (UHMWPE)
Rubber Goods