73096248
Aug 11, 1976
Nov 14, 1978
OIL AND GAS WELL EQUIPMENT-NAMELY, STANDING VALVES, NEW AND REBUILT SLEEVE TYPE PLUNGERS, DOWNHOLE BUMPER SPRING ASSEMBLIES, SLIP-TYPE TUBING STOPS, FLOW TEE AND CATCHER ASSEMBLIES, SPRING AND CAP ASSEMBLIES, LOWER FLOW TEE ASSEMBLIES, SCRUB AND DRIP POT ASSEMBLIES, DUAL FLOW OUTLET LUBRICATOR ASSEMBLIES
MachineryELECTRIC AND MECHANICAL TIME AND PRESSURE CONTROLS FOR OIL AND GAS WELL EQUIPMENT
Electrical and Scientific Apparatus