JL

Jean J. Lefebvre

QT Qit-Fer Et Titane: 2 patents #2 of 6Top 35%
Overall (All Time): #2,361,700 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4377289 Furnace electrode seal assembly 1983-03-22
4306726 Furnace electrode seal assembly 1981-12-22