Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F26
DRYING
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F26B
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
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5/00
Drying solid materials or objects by processes not involving the application of heat
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F26B5/04
by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
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F26B5/06
the process involving freezing
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F26B5/065
the product to be freeze-dried being sprayed, dispersed or pulverised
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