Ronald P. Marsh

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St. Louis, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Variable thickness mat for use at the stress transition zone junctu...
- Patent number 4,397,899
- Issue date Aug 9, 1983
- True Temper Corporation
- Ronald P. Marsh
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Variable thickness fabric mat for railway track structure and method
- Patent number 4,311,273
- Issue date Jan 19, 1982
- True Temper Corporation
- Ronald P. Marsh
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES