Class 007
Machinery Products
Crown and travelling blocks; swivels; pulley blocks; draw works or hoists; drives for draw works and pumps; engines and parts thereof in this class - particularly, gas engines, steam engines, internal combustion engines and transmissions; stuffing boxes; oil well rigs and parts thereof; outfits for sinking wells of large diameter through soft formations; pumping machinery and equipment and parts thereof - particularly, steam pumps, rotary pumps, jet pumps, slush pumps, force pumps, pitcher-spout pumps, pumping jacks, pumping powers and pumping units; rig parts; portable well pulling machines; drive-well and test boring machines; test boring machines; rig irons; sand reels; boiler and engine fittings - particularly, tube expanders, flue cleaners, steam whistles, inspirators, injectors; ejectors; hydraulic rams; drilling and fishing tools for cable systems; well equipment - particularly, elevators, anchor-clams, casing heads; oil well pipe tools - particularly, pipe benders, pipe cutters, pipe threading machines, stocks and dyes, tongs, wrenches, pipe drills and pipe tapping machines; oil-well blacksmith tools; cable tool well drilling units; portable drilling machines; drill collars; drill or grief stems; core drills; feed controls for well drilling; polish rod jackets; rotary drilling units and parts thereof - particularly, well drilling rotaries; derricks, portable derricks and parts thereof - particularly, substructures for derricks and drives; portable masts; pull rods; pull rod clamps; reduction gears; sucker rods; sucker rod couplings; oil well packers; gas booster units
