FH

Fred L. Hung

Overall (All Time): #2,242,399 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6123509 Pressure valve device for a cleaning apparatus — 2000-09-26
5839205 Electric fan using multiple fan blades to raise air output pressure — 1998-11-24