KR

Kimmo Ritvanen

KO Kvaerner Masa-Yards Oy: 1 patents #10 of 55Top 20%
📍 Helsinki, FI: #2,126 of 3,940 inventorsTop 55%
Overall (All Time): #3,773,393 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5425673 Fire closure shutter Timo Mahlanen, Arvo Rasanen, Outi Siivonen 1995-06-20