PS

Paul Spira

NO Noranda: 1 patents #54 of 153Top 40%
📍 Mont-Laurier, CA: #128 of 235 inventorsTop 55%
Overall (All Time): #3,847,008 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5100528 Continuous silver refining cell Pierre L. Claessens, Bernard H. Morrison, John L. Cromwell 1992-03-31