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3360340
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Patent number 3,360,340
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Issue date Dec 26, 1967
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3192019
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Patent number 3,192,019
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Issue date Jun 29, 1965
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3134650
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Patent number 3,134,650
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Issue date May 26, 1964
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3126258
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Patent number 3,126,258
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Issue date Mar 24, 1964
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL