Frederick E. Van Dusen

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Hopkins, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Silo discharge door frame for use with silo clean chute funnel
- Patent number 4,260,313
- Issue date Apr 7, 1981
- Van Dusen & Co., Inc.
- Frederick E. Van Dusen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Ring type silo unloader
- Patent number 4,242,028
- Issue date Dec 30, 1980
- Van Dusen & Co., Inc.
- Frederick E. Van Dusen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Support for silo unloader, silo safety platform, and silage distrib...
- Patent number 3,960,283
- Issue date Jun 1, 1976
- Van Dusen & Co., Inc.
- Frederick E. Van Dusen
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING