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Norbert Kiesewetter
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Stuttgart, DE
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last 30 patents
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Patent Grant
Sound absorbing building component of synthetic resin sheeting
Patent number
4,425,981
Issue date
Jan 17, 1984
Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
Norbert Kiesewetter
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES