DM

Douglas L. Mason

AH Adt Holdings: 1 patents #2 of 8Top 25%
📍 Newton, MA: #26 of 109 inventorsTop 25%
🗺 Massachusetts: #582 of 2,831 inventorsTop 25%
Overall (1989): #119,321 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4823015 Electrical interference free projected beam smoke detector Aaron A. Galvin, Kenneth J. Leff, John N. Schide, Ralph Giffone 1989-04-18