HJ

H. William Derrick, Jr.

DM Derrick Manufacturing: 1 patents #9 of 14Top 65%
📍 Williamsville, NY: #404 of 663 inventorsTop 65%
🗺 New York: #67,335 of 115,490 inventorsTop 60%
Overall (All Time): #3,826,655 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5221008 Vibratory screening machine and non-clogging wear-reducing screen assembly therefor John J. Bakula 1993-06-22