RJ

Rubein V. Johnson

📍 Muskogee, OK: #3 of 7 inventorsTop 45%
🗺 Oklahoma: #101 of 552 inventorsTop 20%
Overall (1982): #32,607 of 81,411Top 45%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4311206 Hearing aid ear mold with improved discrimination — 1982-01-19