HG

Helmut Grohmann

VM Veitscher Magnesitwerke-Actien-Gesellschaft: 2 patents #4 of 38Top 15%
Overall (All Time): #2,368,625 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4362709 Process of preparing sinter magnesia Peter Stadler 1982-12-07
4255399 Process for the recovery of magnesium oxide of high purity Michael Grill 1981-03-10