Hydrothermal Power Co., Ltd.

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Pasadena, CA, US

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Throttling means for geothermal streams
- Patent number 3,977,818
- Issue date Aug 31, 1976
- Hydrothermal Power Co., Ltd.
- Roger S. Sprankle
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

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