HC

Henry J. Chapin

AB Abex: 2 patents #11 of 69Top 20%
Overall (All Time): #2,356,045 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4425169 Austenitic-manganese steel Dilip K. Subramanyam, Bruce A. Heyer 1984-01-10
4342593 Castings Hugo R. Larson, Howard S. Avery 1982-08-03