PH

Pertti Helminen

📍 Lohja, FI: #39 of 73 inventorsTop 55%
Overall (All Time): #3,744,798 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5524771 Strength-grading of veneer sheets Matti Kairi 1996-06-11