HL

Helmut List

Overall (1989): #106,560 of 140,708Top 80%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4881003 Method and device for reducing the water content in piezoelectric GAPO.sub. 4 Günter Engel, Peter W. Krempl, Uwe Posch, Alfred Nitsch 1989-11-14