DR

Donald L. Ralph

IC ICI: 1 patents #1,088 of 2,189Top 50%
Overall (All Time): #3,960,763 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4776998 Method of making refractory shaped articles by cutting vertically hanging extrudates Peter J. Davidson, John F. Davidson, Frank A. Kirk 1988-10-11