MP

Matti Purhonen

TO Temet Oy: 2 patents #1 of 3Top 35%
📍 Helsinki, FI: #1,498 of 3,940 inventorsTop 40%
Overall (All Time): #2,335,895 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4733606 Closure device Klaus Frestadius 1988-03-29
D287159 Valve for equalizing pressure resulting from explosions or blasts — 1986-12-09