HF

Helmut Fronius

ZA Zf Friedrichshafen Ag: 1 patents #1,366 of 2,695Top 55%
Overall (All Time): #3,497,203 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6827189 Electromagnetically actuated, single-surface friction coupling, without a rotor slip ring Rudolf Schneider 2004-12-07