Robert M. Winkel

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Niles, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Animal feeder
- Patent number 4,729,344
- Issue date Mar 8, 1988
- Vel-Agri, Inc.
- Robert M. Winkel
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING