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Process to produce nearly oil free compressed ammonia and system to implement it
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Method of using a thermal expansion valve device, evaporator and flow control means assembly and refrigerating machine
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Process to cut hour glass screws
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Casing construction for screw compression/expansion machines
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Positive displacement rotary machine
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Slide compressor with equalizing springs.
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Evaporator and flow control means assembly for a refrigerating machine
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Air compression arrangement with an oilless rotary compressor, and relative process
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Injected compressor with liquid switch
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HERMETIC COMPRESSOR FOR REFRIGERATION WITH ENGINE COOLED BY GAS ECONOMIZER
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HERMETIC REFRIGERATION COMPRESSOR WITH ECONOMIZER
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Floating pinion with spring for volumetric machine
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Injected compressor with liquid switch
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Refrigeration system with centrifugal economizer
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Economizer device for device, such as refrigerator, heat pump, etc.
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Economizer device for refrigeration apparatus
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