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US4838214A
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Internal combustion engine assembly
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US4544021A
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Method and apparatus for extracting heat from a natural water source
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US4191018A
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Fluid transmission
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US4217865A
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Internal combustion engine
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US4086771A
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Combined internal combustion and heat engine
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CA1055391A
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Fluid carrier recovery system
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US4033412A
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Fluid carrier recovery system and method
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US3983700A
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Fluid transmission
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CA972169A
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Heat engine
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US3867816A
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Low pollution reciprocating heat engine
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US3867815A
|
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Heat engine
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US3698184A
|
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Low pollution heat engine
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Binary digital transducer
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US3612205A
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Fluid motor
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|
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Pressure intensifier
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US3241463A
|
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Variable power exchanger
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US3037488A
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Rotary hydraulic motor
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CA912910A
|
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Fluid motor
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CA754368A
|
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Variable power exchanger
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CA630344A
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Rotary hydraulic motor
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