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Method for producing a piston ring
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Patent number 8,973,262
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Issue date Mar 10, 2015
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Federal-Mogul Burscheid GmbH
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Johannes Esser
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Piston ring
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Patent number 8,430,410
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Issue date Apr 30, 2013
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Federal-Mogul Burscheid GmbH
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Johannes Esser
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Piston ring
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Patent number 8,356,820
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Issue date Jan 22, 2013
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Federal-Mogul Burscheid GmbH
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Johannes Esser
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Piston ring
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Patent number 8,235,393
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Issue date Aug 7, 2012
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Federal-Mogul Burscheid GmbH
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Johannes Esser
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...