AM

Allen S. McDonald

HH Handy & Harman: 2 patents #11 of 36Top 35%
📍 Bridgeport, CT: #109 of 303 inventorsTop 40%
🗺 Connecticut: #15,609 of 34,797 inventorsTop 45%
Overall (All Time): #2,344,063 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4684052 Method of brazing carbide using copper-zinc-manganese-nickel alloys Charles W. Philp, Thomas A. Sperakis 1987-08-04
4631171 Copper-zinc-manganese-nickel alloys Charles W. Philp, Thomas A. Sperakis 1986-12-23