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Process for the production of aliphatic carboxylic acids
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Method of drying colloidal substances
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Process for the manufacture of soaps and substances containing soaps
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Method of and device for the production of soap in thin vermicelli-like strips
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Improvements in the manufacture of soaps
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Manufacture of glass and hydrochloric acid
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An improved saponaceous cleanser
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Process and apparatus for the production of soap powder
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Method of drying colloidal substances
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