Larry E. Frederking

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Port Allen, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for loading and unloading railroad gondola cars
- Patent number 4,830,562
- Issue date May 16, 1989
- Larry E. Frederking
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method and apparatus for loading and unloading railroad gondola cars
- Patent number 4,723,886
- Issue date Feb 9, 1988
- Larry E. Frederking
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING