Robert Shanahan

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Weed, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Trailer with selective elevating and lowering feature
- Patent number 6,592,139
- Issue date Jul 15, 2003
- Robert Shanahan
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Bulk material chute system
- Patent number 4,821,861
- Issue date Apr 18, 1989
- Robert Shanahan
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL