CE

Charles H. Etheridge

MC Mine Safety Appliances Company: 2 patents #1 of 6Top 20%
📍 Pittsburgh, PA: #27 of 308 inventorsTop 9%
🗺 Pennsylvania: #357 of 4,234 inventorsTop 9%
Overall (1994): #37,029 of 165,921Top 25%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5370004 Multiple port personal air sampling apparatus Clayton J. Bossart, Daniel E. Bruce 1994-12-06
5295790 Flow-controlled sampling pump apparatus Clayton J. Bossart, Craig D. Gestler 1994-03-22