GB676795A
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Improvements relating to the production of building materials
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GB537014A
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Improvements in four-stroke cycle internal combustion engines of the sleeve valve type
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GB452964A
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Valve mechanism for internal combustion engines
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US2105272A
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Sleeve valve for a four stroke opposed piston engine
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US2097741A
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Valve mechanism in internal combustion engines of the opposed piston type
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GB274432A
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Improvements in four-stroke cycle explosion motors
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GB208523A
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Improvements relating to the distribution gear of internal combustion engines
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US1492537A
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Internal-combustion engine
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US1413543A
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Reciprocating engine
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GB137815A
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Improvements in or relating to reciprocating engines
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