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Betra Lehmann

VG Vorwerk & Co. Interholding Gmbh: 1 patents #132 of 226Top 60%
Overall (All Time): #3,828,373 of 4,157,543Top 95%
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Patent #TitleCo-InventorsDate
5226941 Dust filter bag Paul-Ulrich Uibel 1993-07-13