RS

Robert R. Spry

📍 Bloomington, IL: #452 of 606 inventorsTop 75%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #4,056,412 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4399973 Christmas tree stand Robert H. Spry, Gloria Koller 1983-08-23