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DD296680A5
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Process for granulating the trinatrium salt of nitrilotriacic acid
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DD300869A7
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Circuit arrangement for quality control of a fine distillation column for the recovery of n-hexane cut
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Verschlussstopfen
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DD294683A5
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Method and device for reprocessing water-containing oil sludge
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DD294684A5
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Process for processing water-containing oil sludge
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DD294242A5
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Process for reactor delivery
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DD300961A7
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Device for radial liquid line in packed beds in columns
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DD300962A7
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Device for liquid application to packed beds in columns
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DD300167A7
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Process for process control of the synthesis of acrylnitrile
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DD299101A7
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Device for heat extraction from switch-layer reactors
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DD299882A7
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Process for cleaning aromatic hydrocarbons
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DD290182A5
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Method for obtaining imino-2,2-dipropionic acid, its sodium salt and its solutions
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DD290209A5
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Method for producing high-active carbureting fuels
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Method for the regenerative flavoring of hydrocarbon fractions
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Process for obtaining aromatic hydrocarbons
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DD289031A5
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Method for the dehumidification of waste sludge of microbiological protein production from petroleum stillillate
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DD287997A5
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Fluid level indicator with glimmer cover
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DD287726A5
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Antisant for metallic surfaces
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DD287049A5
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Fuel composition with improved temperature temperature properties
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DD287048A5
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Method for quality improvement of petroleum medium distillates
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