Filed: November 10, 1981METALLIC TUBES AND FITTINGS -- NAMELY, ELBOWS, TEES, CROSSES, CAPS AND REDUCERSOwned by: VALLOURECSerial Number: 73336526
Filed: June 24, 1985TUBING JOINTS, METAL TUBES AND CONNECTIONS FOR USE IN OIL AND GAS WELLSOwned by: VALLOURECSerial Number: 73544824
Filed: April 22, 1986TUBING JOINTS, METAL TUBES AND CONNECTIONS; FOR USE IN OIL AND GAS WELLS, STEAM INJECTION, AND FOR GEOTHERMAL WELLSOwned by: VALLOURECSerial Number: 73595430