ES

Emerson D. Spengler

BS Bethlehem Steel: 1 patents #5 of 40Top 15%
📍 Lebanon, PA: #1 of 4 inventorsTop 25%
🗺 Pennsylvania: #570 of 2,652 inventorsTop 25%
Overall (1982): #66,898 of 81,411Top 85%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4345492 Method of making metal forming punches Charles W. Schaeffer 1982-08-24