RH

Roger Elmo Humphreys

📍 Chula Vista, CA: #5 of 29 inventorsTop 20%
🗺 California: #3,049 of 13,957 inventorsTop 25%
Overall (1994): #75,359 of 165,921Top 50%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5285190 Automatic slack adjuster with operation and adjustment monitor Steven Bruce Humphreys 1994-02-08