DI

Donald R. Freda, III

📍 Newtown Square, PA: #112 of 183 inventorsTop 65%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,723,087 of 4,157,543Top 90%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5660389 History based trivia game with weighted scoring system — 1997-08-26