Workholding fixtures, namely, magnetic chucks for milling, grinding, electrical discharge machining, turning and drilling, and accessories therefor, namely, laminated circular top plates for use on circular chucks, laminated bars for use on magnetic chucks, floating laminated supports for use with magnetic chucks, laminated blocks for use on magnetic chucks, pole raisers for use as raised support for work pieces on magnetic chucks, short taper adapter to fit magnetic chucks, morse taper adapter to fit magnetic chucks; metal clamping devices for holding work pieces on machine tool tables, magnetic stands; machine tools, namely, vices, clamps, and jaws for use in the precision clamping of work pieces; vacuum air compressors, vacuum auxiliary storage device for relief of vacuum air compressors; precision dressing devices for profiling, angle dressing and dressing the side faces of grinding wheels; machine parts, namely, lifting arms for lifting and swiveling of plates and discs, hand lifters, plate lifters for lifting, transporting and holding of sheet metal, and replacement parts and accessories therefor, all for precision machining application; accessories for control units for chucks, namely, slip-ring bodies, carbon brushes, and carbon brush holders; Workholding fixtures, namely, sine tables

Electrical power supplies and control units for chucks; magnetic blocks for machining purposes; permanent magnetic bases for use in connection with supports, truing devices, and dial gauge stands; dial gauges for high precision measurement of height and run-out; electric magnetic meters for residual remanence measurement on work pieces and tools, and in drillings and fixtures; electric force testers for measuring the holding force of magnetic chucks; demagnetizers for demagnetizing parts and work pieces after magnetic holding; electric vacuum switches; lifting magnets, and replacement parts therefor, all for precision machining applications