David W. Bossa

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Braintree, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Toy staircase game apparats and method
- Patent number 5,676,374
- Issue date Oct 14, 1997
- Hasbro, Inc.
- David W. Bossa
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Playswing assembly
- Patent number 5,016,873
- Issue date May 21, 1991
- David W. Bossa
- E04 - BUILDING