GB201414323D0
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Heat extraction using pressurised condensed gas
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GB201409646D0
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Mechanical inertial propulsion
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GB201015202D0
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Mechanical inertial propulsion system, new variant
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Mechanical,inertial,propulsion,system
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Air thermal energy conversion
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GB0315833D0
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Air thermal energy conversion
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GB0216344D0
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Air thermal energy conversion
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GB9005446D0
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Modification to the reciprocating internal combustion engine
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