RD

Robert G. Derrick

DM Derrick Manufacturing: 1 patents #2 of 4Top 50%
📍 Yonkers, NY: #11 of 35 inventorsTop 35%
🗺 New York: #1,258 of 5,342 inventorsTop 25%
Overall (1989): #63,881 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4882054 Vibratory screening machine with tiltable screen frame and adjustable discharge weir William W. Derrick 1989-11-21