Allen A. Leach

📍 Peterborough, NH: #3 of 6 inventorsTop 50%

🗺 New Hampshire: #88 of 409 inventorsTop 25%

Overall (1989): #133,346 of 140,708Top 95%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4848398	Ball gate pressure relief valve	—	1989-07-18