AH

Alfred F. Helfi

📍 Thionville, FR: #29 of 59 inventorsTop 50%
Overall (All Time): #4,061,122 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4416443 Process and apparatus for detection of the stoppage of a tuyere for blowing a gas through the bottom of a refining converter Jean-Claude Muller 1983-11-22