HH

Hsi-Yin Ho

Overall (1997): #37,698 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5680658 Urinal flushing control device 1997-10-28
5667756 Structure of ozonizer 1997-09-16