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Ott; Rita
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Langenhagen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Aeration device
Patent number
5,676,890
Issue date
Oct 14, 1997
Ott; Rita
Wilfried Ott
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Gas injection equipment
Patent number
4,954,296
Issue date
Sep 4, 1990
Ott; Rita
Wilfried Ott
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE