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AU3615197A
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Power generator driven by environment's heat
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AU6553496A
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Power generator driven by environment's heat
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WO9507410A1
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Propulsion apparatus driven by environment's heat
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AU4623093A
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Propulsion apparatus driven by heat extracted from atmosphere or water
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EP0205432A1
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Propulsion apparatus.
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EP0179057A1
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Conversion of molecular energy into power.
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US3922871A
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Heating and cooling by separation of faster from slower molecules of a gas
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