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Ulrich Piepenbrink
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Schwelm, DE
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last 30 patents
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Patent Grant
Emergency operation ring for tubeless tires in motor vehicles
Patent number
4,592,403
Issue date
Jun 3, 1986
Vorwerk & Sohn GmbH & Co. KG
Hermann Stein
B60 - VEHICLES IN GENERAL
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Patent Grant
Emergency running ring for pneumatic vehicle tires
Patent number
4,371,024
Issue date
Feb 1, 1983
Vorwerk & Sohn GmbH & Co. KG.
Hermann Stein
B60 - VEHICLES IN GENERAL