RF

Ronald J. Frere

EM Emhart: 1 patents #24 of 90Top 30%
🗺 Massachusetts: #582 of 2,831 inventorsTop 25%
Overall (1989): #63,488 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4848115 Electronic locking system and key therefor Bruce A. Clarkson, Thomas G. Loughlin, William Taylor, Peter Mongeau 1989-07-18