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Reciprocating engine with a gear drive
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Patent number 5,111,782
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Issue date May 12, 1992
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Dr. Ing. h.c.F. Porsche AG
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Hans Mezger
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Valve seat ring cooling apparatus
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Patent number 4,593,655
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Issue date Jun 10, 1986
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Dr. Ing. h.c.F. Porsche Aktiengesellschaft
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Hans Mezger
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Cylinder block
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Patent number 4,530,315
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Issue date Jul 23, 1985
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Harley Davidson Motor Co., Inc.
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Hans Mezger
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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