TA

Toivo K arn a

Google: 1 patents #14,769 of 22,993Top 65%
Overall (All Time): #3,759,672 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5585038 Conductive plastics material and a method for its preparation Pauli Kirmanen, Esko Savolainen, Esa Virtanen, Jukka Laakso, Heikki Ruohonen +3 more 1996-12-17