7 Machine parts, namely, flexible shaft couplings, bearing inserts; control, operating and clamping elements of metal or plastic for devices, machines and apparatus being machine parts, namely adjustable clamping levers for holding piece parts on machine tool tables, tension levers in the nature of gear levers knobs, safety clamping levers for holding piece parts on machine tool tables, ratchet tensioner, steel clamping levers for holding piece parts on machine tool tables, gear lever knobs, clamping hubs for holding piece parts on machine tool tables, star grip knobs, palm grip knobs, three-grip knobs, knurled handles, torque handles, eccentric clamps, spiral clamps, wedge clamps, centring clamps, quick release clamps, pneumatic clamps, spring-loaded thrust pads, operating handles, stirrup handles, tube handles, control and locking cranks, hand cranks, hand wheels, spoke hand wheels, disc hand wheels with fixed and folding handle, clamping, tensioning and shifting levers, palm grips and star handles, knobs; machine parts, namely, hydraulic controls, and operating and clamping elements of metal or plastic for devices, machines and apparatus, namely, clamps for use in the precision clamping of work pieces, thermostatic control valves for machines, handwheels with positioning display scales, analog, digital mechanical and electronic position displays, closures in the nature of metal clamps for position clamping of work pieces, ventilating closures, quick-release levers knobs for machines, pneumatic clamps for precision clamping of work pieces; parts for industrial machines, namely, operating handles, handles, bow-type handles, pipe handles, handwheels, spoked handwheels, disc-type handwheels with fixed or retractable handles, clamping and operating levers, palm grips and star handles, knobs, screws, nuts, headless pins and door bolts; parts for industrial machines, namely, cranks; parts for industrial machines, namely, handwheels with position display scales; parts for industrial machines, namely, analog, digital, mechanical and electronic position displays; parts for industrial machines, namely, closures; parts for industrial machines, namely, ventilating closures; all of the foregoing not for use for motor vehicles or washing apparatus