SG

Stanley H. Gratt

SG Superior Graphite: 1 patents #14 of 28Top 50%
Overall (All Time): #2,302,940 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5224266 Method of manufacturing a hydraulic pump cylinder 1993-07-06
4634545 Railroad track lubricant Peter L. Zaleski 1987-01-06