DR

David P. Ratcliffe

FS Federal Signal: 1 patents #7 of 28Top 25%
📍 Bristolville, OH: #1 of 2 inventorsTop 50%
🗺 Ohio: #1,244 of 4,576 inventorsTop 30%
Overall (1997): #161,811 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5686653 System for checking the calibration of gravimetric feeders and belt scales John C. Homer, J. Ronald Walsh 1997-11-11