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James R. Roberts
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Grayslake, IL, US
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last 30 patents
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Patent Grant
Apparatus for agitating and pumping a liquid slurry
Patent number
4,572,675
Issue date
Feb 25, 1986
A. O. Smith Harvestoe Products, Inc.
James R. Roberts
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Patent Grant
Pump position retainer apparatus
Patent number
4,511,257
Issue date
Apr 16, 1985
A. O. Smith Harvestore Products, Inc.
James R. Roberts
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL