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Brake disk for disk brakes
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Patent number 6,308,808
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Issue date Oct 30, 2001
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Deutsches Zentrum Pür Luft-und Raumfahrt e.V.
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Walter Krenkel
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Friction unit
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Patent number 6,193,027
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Issue date Feb 27, 2001
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Deutsches Zentrum fur Luft-und Raumfahrt e.v.
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Walter Krenkel
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Method of manufacturing a friction element
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Patent number 6,086,814
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Issue date Jul 11, 2000
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Deutsche Forschungsanstallt fur Luft-und Raumfahrt, E.V.
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Walter Krenkel
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Friction element
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Patent number 6,042,935
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Issue date Mar 28, 2000
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Deutsche Forschungsanstalt fuer Luft-ung Raumfahrt e.V.
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Walter Krenkel
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Gudgeon pin
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Patent number 4,406,558
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Issue date Sep 27, 1983
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Richard Kochendorfer
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Shaft-disc assembly
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Patent number 4,335,586
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Issue date Jun 22, 1982
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Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V.
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Richard Kochendorfer
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES