Emerson D. Spengler

BS Bethlehem Steel: 1 patents #116 of 326Top 40%

📍 Lebanon, PA: #63 of 126 inventorsTop 50%

🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%

Overall (All Time): #4,074,521 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4345492	Method of making metal forming punches	Charles W. Schaeffer	1982-08-24