GB201813230D0
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Blackburn cycle engine
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GB201518403D0
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'Blackburn cycle' engine with exhaust condenser
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US2014060482A1
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Six Stroke 'Blackburn Cycle' Engine
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GB201015469D0
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Six stroke 'Blackburn Cycle'
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GB0714772D0
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Blackburn cycle engine valve gear
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GB0700153D0
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Selectable cam follower
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GB0622278D0
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Retractable cam
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GB0410657D0
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Engine cycles
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GB0325106D0
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Throttle and inlet valves for 8 stroke and 4 stroke engines
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EP0578637A1
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Piston engine cycles
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GB8926260D0
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Piston and connecting rod
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EP0250406A1
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Piston engines.
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