B. J. Helmick

📍 Upland, CA: #2 of 16 inventorsTop 15%

🗺 California: #3,049 of 13,957 inventorsTop 25%

Overall (1994): #154,824 of 165,921Top 95%

Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5356115	Vacuum relief valve	—	1994-10-18