RJ

Richard P. Johnston

📍 Canton, GA: #2 of 5 inventorsTop 40%
🗺 Georgia: #166 of 865 inventorsTop 20%
Overall (1989): #65,833 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4856463 Variable-cycle reciprocating internal combustion engine — 1989-08-15