Ruth M. Johnson

📍 Minneapolis, MN: #22 of 128 inventorsTop 20%

🗺 Minnesota: #156 of 1,035 inventorsTop 20%

Overall (1982): #32,610 of 81,411Top 45%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D264037	Oven rack moving tool	—	1982-04-27