FH

Fritz Heck

FF Firma Carl Freudenberg: 1 patents #255 of 512Top 50%
Overall (All Time): #3,845,010 of 4,157,543Top 95%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5092611 Ferrofluid seal for a shaft Roland Ehmsen, Ulrich Fruedenberg, Rolf Vogt 1992-03-03