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GB421965A
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Manufacture of compounds having germicidal and disinfectant properties
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GB397775A
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Process for purifying organic acid chlorides
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Manufacture of liquid dialkyl phthalate esters
|
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Manufacture of mixed alkyl phenyl esters
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GB374721A
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Improvements relating to the manufacture of purified esters of phosphoric acid and thiophosphoric acid
|
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GB373490A
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Improvements relating to the manufacture of coumarin
|
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Manufacture of maleic acid
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Manufacture of polyhydroxy phenols
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GB361443A
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Process of refining crude phthalic anhydride
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|
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Purification of organic acid chlorides
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ES117430A1
|
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Improvements in the catalysts and their vehicles.
|
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Purification of maleic acid
|
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GB349956A
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Manufacture of new condensation products of formaldehyde with aromatic sulphonamidesand n-aryl derivatives thereof, and their application
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DE535149C
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Process for obtaining alkaloids from cocoa residues by extraction with simultaneous deoiling
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GB334741A
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Improvements in and relating to the production of caffeine
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GB345250A
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Improvements in and relating to the recovery and purification of alkaloids from cocoa products
|
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GB341000A
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Process for recovering valuable products from cocoa by-products
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US1907834A
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Method of dehydrating alcohols
|
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DE565233C
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Process for the production of benzoic acid
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GB341902A
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Process for the manufacture of benzoic acid
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