SH

Siegfried Happrich

📍 Kall, DE: #4 of 12 inventorsTop 35%
Overall (All Time): #3,595,563 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6296820 Method for the reduction of NOX emissions Armin Frohlich, Maria Regina Monnig 2001-10-02