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[Power transmissions and gearing for machines, not for land vehicles; power transmission couplings for machines;] machine parts, namely, keys for releasing machining bits, [workpiece clamping attachments, tensioning devices for endless drive power transmissions,] screwing-in tools, [flexible couplings, square-splines, propeller shafts,] socket head cap screw keys, [tensioning pieces;] machine tools, namely, [workpiece clamping attachments,] ratchet handles, torque wrenches; [pneumatic-controls for machines, motors and engines; hydraulic-controls for machines, motors and engines; machine tool couplings; electrical drives for machines;] percussion tool bits for machines; [electric driving motors for machines; rotary tool bits for machines; sockets parts for machines;] power-operated tools for use with machines, namely, socket spanners, wrenches, screw extractors, nut spinners, ratchet wrenches, screwdrivers; screwdriver bits for electric screwdrivers; screwdriver bits for machines electric screwdrivers [; crank shafts for machines; linking devices, namely, connectors for power tools which fit between and allow connection of the power tool and a socket wrench or socket set]

Hand-operated tools [and implements], namely, ratchet handles, spanners, screw extractors, socket sets, tap ratchets, socket wrenches, monkey wrenches, squares, torque wrenches, wrenches, screwdrivers, pliers, splitters

measuring instruments, namely, [protractors, angle finders,] torque transducers, [dynamometers;] electric measuring devices, namely, wrenches for measuring torque, angle of rotation, [yield point,] dynamic torque audit, dial gauges for torque wrenches and torque screwdrivers[ rotational protractors, ] rotational angle measuring heads, [signal emitters for rotational angle measuring heads, electronic readout circuitry and] digital display connected to a transducer to which torque is applied by a torque wrench or torque screwdriver for checking the torque output of torque wrenches and/or torque screwdrivers, [motor mechanics stethoscopes, automobile service gauges, feeler gauges;] digital measuring apparatuses, namely, dial gauge for checking the torque output of torque wrenches and/or torque screwdrivers [; portable test apparatuses, namely, circuit testers, automotive voltage testers, screw pitch gauges ]