HM

Harri Mattila

KO Kemira Oy: 1 patents #1 of 8Top 15%
📍 Helsinki, FI: #11 of 61 inventorsTop 20%
Overall (1989): #108,154 of 140,708Top 80%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4883539 Coated silicate particles Pekka Eskelinen 1989-11-28