RJ

Richard E. Champney, Jr.

MC Mine Safety Appliances Company: 1 patents #2 of 6Top 35%
🗺 Pennsylvania: #989 of 4,367 inventorsTop 25%
Overall (1997): #51,520 of 185,788Top 30%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5599584 Microminiature combustible gas sensor and method of fabricating a microminiature combustible gas sensor 1997-02-04