Ronald G. Fredrickson

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Mitchell, SD, US

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Patents Grantslast 30 patents

Information Patent Grant
Trailer including a multiple fold powered ramp tail
- Patent number 4,372,727
- Issue date Feb 8, 1983
- Dakota Manufacturing Co., Inc.
- Ronald G. Fredrickson
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Mounting D-rings on truck trailers
- Patent number 4,242,022
- Issue date Dec 30, 1980
- Ronald G. Fredrickson
- B60 - VEHICLES IN GENERAL