7
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs.
oil, gas, water, and sulfur well tools and equipment; namely, whipstocks, packers, baffle plates, bailers, ball releasing tools, bottom hole scrapers, bridge plug setting tools, bridge plugs, casing centralizers, casing collars, casing guides, casing mills, casing scrapers, casing shoes, cementing baskets, cementing manifolds, cementing plugs, change-over flow tubes, circulating subs, circulation joints, cleanout bailers, controllers, downhole fishing and milling tools, downhole motors, directional drilling tools, downhole oil/water separators, downhole production pumps and drill bits, drill pipe floats, electric submersible motors, electric submersible pumps, electric submersible seals, electrical submersible pump cables, expansion joints, feelers and junk catchers, fishing tools, hook-up nipples, horizontal pumps, hydraulic hand pumps, junk baskets, junk pushers, kelly and pipe straighteners, liner hangers, measurement while drilling and logging while drilling tools, packer setting tools, perforation and completion tools and pipe vises and parts thereof; plug catchers, plug dropping heads, retrievable cementers, retrieving joints, rotary gas separators, safety joints, sand screens, stop rings, tubing anchors, tubing centralizers, tubing heads, tubing seal nipples, tubing shoes, tubing swivels, unloading joints, valves, variable speed controllers, wall scrapers, wall scratchers, well packers, wire line jars, wire line setting and operating tools, wireline logging and formation sampling tools