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US3248890A
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Process to concentrate sulphite-lye or other liquors by freezing
|
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GB693490A
|
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A method of producing porous fibre boards or plates
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GB686251A
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Improvements in the manufacture of fibre plates or boards particularly porous fibre plates or boards
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GB671251A
|
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A method of producing fibrous plates or boards from straw and wood fibres
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GB686250A
|
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A process for digesting straw or similar vegetable material
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US2324869A
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Apparatus for separating solution from a mixture of solution and ice crystals
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US2101953A
|
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Method and apparatus for producing cold
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US1942767A
|
|
Method of distilling nonmiscible substances in columns
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US1359911A
|
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Method of separating water or other liquids from solutions
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