John J. Belcher, Jr.

DI Dresser Industries: 1 patents #301 of 787Top 40%

📍 Columbus, OH: #2,196 of 3,880 inventorsTop 60%

🗺 Ohio: #42,657 of 73,341 inventorsTop 60%

Overall (All Time): #4,083,016 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4248611	Mining machine	Robert C. McGuire	1981-02-03