RJ

Roy W. Ritchey, Jr.

📍 Eureka, MO: #63 of 119 inventorsTop 55%
🗺 Missouri: #13,067 of 23,789 inventorsTop 55%
Overall (All Time): #3,814,778 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5177335 Prefilter for EDM machine John D. Hartwig 1993-01-05