Hollis L. Gray, Jr.

DI Dresser Industries: 1 patents #301 of 787Top 40%

📍 Wayland, MA: #393 of 613 inventorsTop 65%

🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%

Overall (All Time): #4,010,273 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4499773	Variable capacitance pressure transducer	Arthur W. Crampton, Seymour Mermelstein	1985-02-19