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Richard A. Curtis
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Seattle, WA, US
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last 30 patents
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Patent Grant
Classification by ferrofluid density separation
Patent number
3,951,785
Issue date
Apr 20, 1976
Avco Corporation
Robert Kaiser
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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Patent Grant
Fine powder classification by ferrofluid density separation
Patent number
3,951,784
Issue date
Apr 20, 1976
Avco Corporation
Robert Kaiser
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...