PR

Pierre Rollet

📍 Prouvy, FR: #1 of 2 inventorsTop 50%
Overall (All Time): #3,958,478 of 4,157,543Top 100%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4768755 Blast-furnaces in the region of the pouring apertures 1988-09-06