PH

Pertti J. Helander

📍 Kuopio, FI: #85 of 216 inventorsTop 40%
Overall (All Time): #4,037,804 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4460110 Openable closing device for freight or storage tanks — 1984-07-17