TT

Tzong P. Tzang

Overall (All Time): #2,285,034 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5394570 Toilet seat ring automatic raising apparatus as electromagnetically actuated — 1995-03-07
5371906 Toilet seat ring automatic raising structure using magnets — 1994-12-13