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GB0711807D0
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I.c. engine crankshaft drive system having a pair of crankshafts per piston
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GB0605076D0
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Geared drive system for a diesel engine
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GB0523204D0
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Engine drive
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GB0504386D0
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Crankshaft drive
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GB0503073D0
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Valve system for four stroke engines
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GB0502199D0
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Internal combustion engine with an annular air piston/cylinder surrounding each power piston/cylinder
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GB0423496D0
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Internal combustion engine
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GB0414604D0
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High performance i.c. engine with contrarotating crankshafts
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GB0406790D0
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High performance internal combustion engine
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GB0326316D0
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Improved two-stroke diesel engine
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GB0317549D0
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New type of cylinder head for four-stroke engines
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GB0305535D0
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Rotary engine
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GB0300261D0
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Internal combustion engine
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GB0200035D0
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New type of internal combustion engine
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