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ES169354A1
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Procedure for the obtaining of sulfonilureas
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ES166806A1
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A procedure for the obtaining of p-aminobencensulfonilurea
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ES165894A1
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A procedure to separate alpha alpha 'lutidina from its mixes with beta and with 8 picoline
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ES165847A1
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A procedure for animalization of cellulose
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ES164389A1
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A procedure for the manufacture of sulfonilureas
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ES164293A1
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A procedure for the obtaining of sulfonylurethanes
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ES160327A1
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A procedure for obtaining a floating soap
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ES160287A1
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A procedure for obtaining an oxidizing agent
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ES160174A1
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A procedure to obtain water-based consolidation agents for dry batteries
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ES158450A1
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A procedure for obtaining a molecular compound of sulfanilamide
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ES151518A1
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A procedure for the manufacture of cosmetic and deodorant products
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