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Agitating mixing apparatus
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Patent number 4,183,678
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Issue date Jan 15, 1980
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Ietatsu Ohno
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3635443
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Patent number 3,635,443
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Issue date Jan 18, 1972
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3362688
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Patent number 3,362,688
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Issue date Jan 9, 1968
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2984461
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Patent number 2,984,461
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Issue date May 16, 1961
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL