LS

Leonard P. Stephenson

CO Cominco: 1 patents #39 of 133Top 30%
Overall (All Time): #4,076,364 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4351668 Flotation of Cu and Pb sulfide concentrates containing carbonates Arthur A. Schweizer 1982-09-28