JB

James K. Byrnes

MC Mine Safety Appliances Company: 1 patents #104 of 243Top 45%
📍 Pittsburgh, PA: #4,559 of 7,570 inventorsTop 65%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,851,560 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5117506 Protective helmet Glenn C. Davis 1992-06-02