RN

Roberto Negroni

Overall (All Time): #4,116,283 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4213753 Honeycomb muffle in tank furnaces for glass melting Eugenio Negroni 1980-07-22