US2352195A
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Method and apparatus for removing a continuous film of material from the surface of drying drums
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US2338117A
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Separator for evaporators
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US2367215A
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Differential pressure responsive device
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US2316176A
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Atmospheric drum drier
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US2197804A
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Process of drying lactose
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US2232248A
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Process of drying whey
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US2188908A
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Process for coagulating proteins in liquor
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US2330221A
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Method and apparatus for concentrating liquids which upon concentration deposit crystals and leave a residual concentrated liquor
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US2188907A
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Drying solutions containing lactose
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US2165272A
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Evaporator
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US2129329A
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Liquor feed for drum driers
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US2100444A
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Rotary drier
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US2096748A
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Evaporator
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US2172393A
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Process for drying whey
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US2143019A
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Drum drier
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US2025059A
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Evaporator
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US2015680A
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Evaporator
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US1992032A
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Evaporator
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US2034599A
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Method of drying inorganic salts and sludges
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US1919229A
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Rotary drier
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