DJ

Donald F. Johnston, Jr.

📍 Waddell, AZ: #11 of 25 inventorsTop 45%
🗺 Arizona: #18,403 of 32,909 inventorsTop 60%
Overall (All Time): #3,405,349 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6986393 Turf aerator core-cleaning systems Andrew L. Johnston, Ian Johnston 2006-01-17