Donald R. Freda III

Follow

Person

Newtown Square, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
History based trivia game with weighted scoring system
- Patent number 5,660,389
- Issue date Aug 26, 1997
- Cygnus Ventures, Inc.
- Donald R. Freda
- A63 - SPORTS GAMES AMUSEMENTS