John W. Varney

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St. Catherines, Ontario, CA

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Patents Grantslast 30 patents

Information Patent Grant
Steam power plant
- Patent number 4,897,999
- Issue date Feb 6, 1990
- John W. Varney
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Water tube steam generator
- Patent number 4,741,291
- Issue date May 3, 1988
- John W. Varney
- F22 - STEAM GENERATION