Robert L. Siewert

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Loudon, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Vehicle having variable gauge rail wheels
- Patent number 4,942,826
- Issue date Jul 24, 1990
- Trackmobile, Inc.
- Warren R. Erickson
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Railcar moving vehicle
- Patent number 4,878,436
- Issue date Nov 7, 1989
- Trackmobile, Inc.
- Richard L. Lich
- B60 - VEHICLES IN GENERAL