DF

David W. Francisco

AS Asarco: 1 patents #1 of 5Top 20%
📍 Beatty, NV: #1 of 1 inventorsTop 100%
🗺 Nevada: #42 of 268 inventorsTop 20%
Overall (1994): #145,952 of 165,921Top 90%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5279644 Fire refining precious metals asay method — 1994-01-18