Description: Machine taps for boring holes and the parts therefor; Hydraulic units comprised of piston motors, reduction gear boxes, and machine brakes and counter balance valves for use in crawler drives, wheel drives, slew drives, and winch drives and cocks, namely valve cocks for liquids or oil hydraulic fluids for use in machines and the parts therefor; Propulsion units, namely, marine inboard-outboard engines, drives and engine-drive combinations and the parts therefor; Industrial clutches for machines and the parts therefor; Oil pumps for land vehicles, timing chains, belts and valves for industrial machines and land vehicles, hydraulic lifters; Machine and internal combustion engine parts, namely bearings, cylinder heads, pistons, and piston rings; Engine block assemblies consisting of cylinder heads, engine cooling pumps for delivering fluid under pressure, drilling machines, grinding machines, lathe-turning machines, routing machines, lathes, metal presses, metal compressors, metal stretching machines, machine tools, namely, sawing tools, drilling tools, grinding tools, lathe-turning tools, routing tools, clamping tools, lathe tools, pressing tools, compressing tools, stretching tools, land vehicle pumps for liquids and elastic fluids; Air compressors for land vehicles; Metal and wood sawing machines, power tools, namely routers; clamping machines for holding piece parts on machine tool tables; Catalyst converter housings for motors and engines; Engine pistons, piston rods, and engine conrods; Water, oil and fuel pumps and tanks for use in motors and engines; Land vehicle parts, namely, wankel internal combustion engine rotors and housings; Automotive engine blocks, automotive cylinder heads for engines, intake and exhaust manifolds, turbocharger housings for engines, camshafts and crankshafts for engines; oil and fuel filter housings; Compression moulding machines for making foundry and foundry casting cores and the parts therefor; Machine tools for milling machines, cutting machines and boring machines; Machines and machine tools for the high speed cutting and milling of materials; Milling machines and milling cutters for three dimensional workpieces; Cold and hot side turbocharger wheels for use in automobiles; Vehicle parts namely cam covers and oil pans