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1988-07-07
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1988-12-22
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1989-08-24
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1987-09-30
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1993-08-18
Method of and apparatus for retrofitting geothermal power plants
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1981-10-26
Method of and apparatus for collecting solar energy
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1989-07-06
Radiation generating apparatus and method
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1982-04-14
Method and system of heat energy conversion
IL73209A0
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1985-01-31
Method and apparatus for thermal energy conversion
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1984-03-28
Method and apparatus for converting thermal energy
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1983-05-15
Method and apparatus for thermal energy conversion
HUT44308A
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1988-02-29
Method and deep well for yielding geothermic energy
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1988-06-08
Memory cell power scavenging apparatus and method
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1982-11-05
Method and device for obtaining thermal energy
AU3015484A
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1985-01-04
Method and equipment for converting thermal energy to mechanical energy
IL78695A0
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1986-08-31
Method and apparatus for collecting solar radiation
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1985-12-17
Method of and apparatus for converting thermal energy in gravitational field
JPS5498437A
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1979-08-03
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EP0125417A3
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1988-05-04
Method and apparatus for converting radiant energy levels to digital data
IL72570A0
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1984-11-30
Method and apparatus for thermal energy conversion
PH21351A
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1987-10-15
Method and apparatus for converting thermal energy
GB2175050B
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1988-10-05
Apparatus for converting heat energy into mechanical and/or electrical energy
PL236443A1
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1983-11-21
Method of and apparatus for converting thermal energy into mechanical one
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1982-07-30
Apparatus and method for converting solar radiation into thermal energy
AU7878387A
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1988-03-24
Method and apparatus for generating mechanical power out of thermal energy