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Biocidally active compounds
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Patent number 5,118,346
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Issue date Jun 2, 1992
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Ciba-Geigy Corporation
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Wolfgang Wehner
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C07 - ORGANIC CHEMISTRY
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Treatment of water
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Patent number 4,874,526
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Issue date Oct 17, 1989
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Ciba-Geigy Corporation
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Reinhardt Grade
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Ammonium stannates-(IV)
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Patent number 4,578,489
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Issue date Mar 25, 1986
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Ciba-Geigy Corporation
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Wolfgang Wehner
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C07 - ORGANIC CHEMISTRY
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