Marvin D. Smith

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Stillwater, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Remotely operated self-loading/unloading railroad gondola car-top m...
- Patent number 7,686,561
- Issue date Mar 30, 2010
- The Board of Regents for Oklahoma State University
- Marvin D. Smith
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Tubing string extension
- Patent number 4,444,253
- Issue date Apr 24, 1984
- Smith; A. Glen
- David A. Smith
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Remotely operated self-loading/unloading railroad gondola car-top m...
- Publication number 20050244255
- Publication date Nov 3, 2005
- Marvin D. Smith
- B66 - HOISTING LIFTING HAULING