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CA1307764C
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Magnetic refuse separator
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US4686034A
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Magnetic refuse separator
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US4692591A
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Humidifier controller having multiple-phase electrode current sensor
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US4666472A
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Dust collector with deflector means
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US4585163A
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Variable air volume system control
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AU3842485A
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Drum type magnetic separator
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US4683424A
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Apparatus for use in testing circuit boards
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US4572283A
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Environmental test chamber
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CA1213336A
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Variable air volume system control
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AU2833584A
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Movable belts/fixed magnets, magnetic refuse separator
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US4624567A
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Fluid particle sensor
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US4491062A
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Adjustable slot diffuser
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US4578092A
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Method and apparatus for improving the operation of a dust collector
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US4570758A
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Manual control for releasably holding a spring applied/electrically released brake disengaged
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US4601371A
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Alternating current clutch
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CA1163853A
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Air control mechanism having noise suppression means
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US4513809A
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Energy recovery ventilator
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US4439129A
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Hydraulic refractory press including floating upper and lower plunger assemblies
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US4447198A
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Hydraulic refractory press including product thickness or density control means
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US4428475A
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Heavy material conveyor belt wear protection
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