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Ludwig Beyer
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Meerbusch, DE
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last 30 patents
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Patent Grant
Operating fluid for lifetime lubricated internal combustion engines
Patent number
6,194,359
Issue date
Feb 27, 2001
Fragol Schmierstoff GmbH & Co. KG
Ludwig Beyer
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...