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Erhard Crema
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Maintal, DE
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last 30 patents
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Patent Grant
Process for recirculating and purifying waste water from a vehicle...
Patent number
5,665,245
Issue date
Sep 9, 1997
BL Patentverwaltungs und Vertriebs GmbH
Harald Kloss
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE