11 Utility Patents
#2 in Horhausen
#20,706 in Germany
#363,721 in the World
Forward Citations = 131
Company Filing History:
Winkler & Duennebier Maschinenfabrik Und Eisengiesserei Kg
Winkler + Duennebier Ag
Winkler & Duennebier Maschinenfabrik Und Eisengiesserei Gmbh
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