Douglas Harrison

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Newburyport, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Sequential response determining question game
- Patent number 5,219,433
- Issue date Jun 15, 1993
- Breslow, Morrison, Terzian & Associates, Inc.
- John V. Zaruba
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Token moving game with spinning disrupter
- Patent number 5,129,655
- Issue date Jul 14, 1992
- Breslow, Morrison, Terzian & Associates, Inc.
- Michael R. Gillespie
- A63 - SPORTS GAMES AMUSEMENTS