DR

David A. Richards

📍 Merrimack, NH: #7 of 26 inventorsTop 30%
🗺 New Hampshire: #136 of 601 inventorsTop 25%
Overall (1994): #144,223 of 165,921Top 90%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5283421 Electric appliance with safety switching arrangement — 1994-02-01