OD

Otto Durnfelder

Overall (All Time): #4,115,202 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4211164 Rotary drum-type collecting vessel with a raking and pressing screw Karl Fichtl, Rudolf Berger, Erich Pilz 1980-07-08