Thomas P. Campbell

📍 Spokane, WA: #7 of 52 inventorsTop 15%

🗺 Washington: #241 of 1,406 inventorsTop 20%

Overall (1989): #50,999 of 140,708Top 40%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4874357	Centrifugal flotation apparatus	—	1989-10-17