Winkelman Building Corp.

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Sauk Rapids, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Environmentally controlled crop storage building
- Patent number 6,139,424
- Issue date Oct 31, 2000
- Winkelman Building Corp.
- Duane B. Schultz
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL