DD

Duane E. Doll

AL Allis-Chalmers: 1 patents #89 of 232Top 40%
📍 York, PA: #527 of 933 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,069,536 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4329097 Adjustable positive means for locking studs and nuts having critical prestress value Robert D. Steele 1982-05-11