SA

Sheldon Apsell

AT American District Telegraph: 1 patents #4 of 10Top 40%
📍 Nahant, MA: #2 of 2 inventorsTop 100%
🗺 Massachusetts: #329 of 1,827 inventorsTop 20%
Overall (1982): #31,570 of 81,411Top 40%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4321592 Multiple sensor intrusion detection system Richard E. Crandall, Aaron A. Galvin 1982-03-23