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Piston ring
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Patent number 6,186,512
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Issue date Feb 13, 2001
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Mannesmann Sachs AG
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Norbert Deppert
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Guide bushing
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Patent number 6,105,739
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Issue date Aug 22, 2000
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Mannesmann Sachs AG
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Norbert Deppert
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Process for manufacturing a piston ring
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Patent number 6,003,227
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Issue date Dec 21, 1999
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Mannesmann Sachs AG
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Norbert Deppert
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Cylinder piston rod unit
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Patent number 4,987,826
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Issue date Jan 29, 1991
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Fichtel & Sachs AG
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Norbert Deppert
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...