Ralph W. Clark

📍 Roseburg, OR: #44 of 103 inventorsTop 45%

🗺 Oregon: #17,068 of 28,073 inventorsTop 65%

Overall (All Time): #3,858,581 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5144701	Wheel chair shampoo apparatus	—	1992-09-08