UHDE GMBH, DORTMUND,WEST GERMANY A GERMAN COMPANY

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4785554 Method and apparatus for conditioning bulk materialExpiredNov 25, 87Nov 22, 88[F26B]
4681157 Crossflow heat exchangerExpiredSep 27, 85Jul 21, 87[F28D, F28F]
4469577 Membrane electrolysis cellExpiredMay 25, 83Sep 04, 84[C25B]

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