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Robert D. Woodworth
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Clarendon Hills, IL, US
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last 30 patents
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Patent Grant
Hydraulic angling mechanism for disc harrow gangs
Patent number
4,180,135
Issue date
Dec 25, 1979
International Harvester Company
Eugen J. Birkenbach
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING