DS

Donald L. Shawkey

RC R. D. Werner Co.: 1 patents #10 of 25Top 40%
📍 Franklin, PA: #11 of 23 inventorsTop 50%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,126,153 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4240522 Extension trestle ladder Kenneth J. Spear 1980-12-23