Ronald D. Hart

📍 Tacoma, WA: #4 of 34 inventorsTop 15%

🗺 Washington: #319 of 1,789 inventorsTop 20%

Overall (1994): #75,563 of 165,921Top 50%

Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5322133	Apparatus for obtaining a soil core sample	—	1994-06-21