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Coating drum
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Patent number 4,241,692
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Issue date Dec 30, 1980
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Compagnie Neerlandaise de l'Azote
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Willy H. P. Van Hijfte
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Process for urea granulation
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Patent number 4,219,589
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Issue date Aug 26, 1980
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Compagnie Neerlandaise de l'Azote
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Anton Niks
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C05 - FERTILISERS MANUFACTURE THEREOF
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Process for treating urea bodies
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Patent number 4,160,782
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Issue date Jul 10, 1979
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Compagnie Neerlandaise de l'Azote
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Willy Henri P. Van Hijfte
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C05 - FERTILISERS MANUFACTURE THEREOF
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Preparation of ureaform
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Patent number 4,123,570
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Issue date Oct 31, 1978
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Compagnie Neerlandaise de l'Azote (Societe Anonyme)
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Willy H. P. Van Hijfte
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C05 - FERTILISERS MANUFACTURE THEREOF