William B. Spillman Jr.

SP Simmonds Precision Products: 1 patents #7 of 14Top 50%

📍 Vergennes, VT: #1 of 6 inventorsTop 20%

🗺 Vermont: #34 of 182 inventorsTop 20%

Overall (1989): #43,108 of 140,708Top 35%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4874941	Optical displacement sensor with a multi-period grating	—	1989-10-17