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Calcium removal method
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Taiheiyo Cement Corporation
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Noritoshi Tamura
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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pH control process and system
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Ecografica S.r.1.
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Antonio Carriero
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Water conditioning process
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Patent number 4,083,782
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Issue date Apr 11, 1978
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Rohm & Haas Company
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Robert Kunin
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3501402
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Patent number 3,501,402
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3342730
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2801941
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B60 - VEHICLES IN GENERAL
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2404367
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2287284
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Patent number 2,287,284
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Issue date Jun 23, 1942
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL