CB

Carl H. Brinkhoff

MC Mine Safety Appliances Company: 2 patents #57 of 243Top 25%
📍 Pittsburgh, PA: #3,179 of 7,570 inventorsTop 45%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,346,065 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4564009 Universal ear plug — 1986-01-14
4536892 Riot faceshield assembly Gordon C. Scott 1985-08-27