Charles M. Cowles

📍 Olney, MD: #2 of 15 inventorsTop 15%

🗺 Maryland: #225 of 1,164 inventorsTop 20%

Overall (1989): #126,748 of 140,708Top 95%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4848330	Respirator system	—	1989-07-18