JD

John Duffy

ED Equipment Systems & Devices: 1 patents #1 of 2Top 50%
📍 Renton, WA: #3 of 20 inventorsTop 15%
🗺 Washington: #103 of 744 inventorsTop 15%
Overall (1982): #53,367 of 81,411Top 70%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4350240 Coin slide with interchangeable cores Harvey S. Gitlin 1982-09-21