Welch, Welch and Swanson

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for producing power using the excess pressure...
- Patent number 5,555,728
- Issue date Sep 17, 1996
- Welch, Welch and Swanson
- Kenneth W. Welch
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES