William J. Walker, Jr.

BL Bs&B Safety Systems Limited: 1 patents #1 of 4Top 25%

📍 Seattle, WA: #62 of 333 inventorsTop 20%

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

Overall (1989): #42,897 of 140,708Top 35%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4838447	Pressure relief device with conical reverse buckling disc	Karl L. Albracht	1989-06-13