ER

Erkki Ranki

KO Kvaerner Masa-Yards Oy: 1 patents #10 of 55Top 20%
📍 Helsinki, FI: #2,126 of 3,940 inventorsTop 55%
Overall (All Time): #3,670,098 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5996520 Icebreaking method and icebreaker Matti Arpiainen, Magnus Backstrom, Torsten Heideman, Tom Mattson 1999-12-07