OS

Orvin D. Simpson

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Springfield, MO: #267 of 510 inventorsTop 55%
🗺 Missouri: #13,067 of 23,789 inventorsTop 55%
Overall (All Time): #4,056,952 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4401941 Flange and casing checking instrument William E. Cunningham 1983-08-30