FF

Frank Fruengel

Overall (All Time): #1,670,983 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4839529 Arrangement for in situ determination of quantity of turbid matter aerosol and/or dust in fluid which flows through a space 1989-06-13
4722599 Device for measuring cloud height Eberhard Gelbke, Horst Huettmann 1988-02-02
4451128 Method of and a device for adjusting a high-speed photographic arrangement 1984-05-29