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Robert J. Campbell
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Cedar Rapids, IA, US
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last 30 patents
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Patent Grant
Apparatus for coating tablets with computer control
Patent number
4,554,887
Issue date
Nov 26, 1985
Vector Corporation
David Yoakam
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Agricultural spraying assembly
Patent number
4,197,995
Issue date
Apr 15, 1980
McCord Corporation
Robert J. Campbell
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING