Roger H. Dunbar

📍 Elkhart, IN: #483 of 828 inventorsTop 60%

🗺 Indiana: #19,404 of 33,936 inventorsTop 60%

Overall (All Time): #4,087,886 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4262584	Grain tower aeration structure	—	1981-04-21