DC

Donald Churchill

AP Appleton Papers: 1 patents #4 of 14Top 30%
📍 Appleton, WI: #13 of 66 inventorsTop 20%
🗺 Wisconsin: #325 of 1,637 inventorsTop 20%
Overall (1989): #33,459 of 140,708Top 25%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4873219 Desensitizable self-contained record material useful for security documents and the like Robert W. Brown 1989-10-10