Samuel Francis

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McLean, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Three-dimensional sliding element puzzle
- Patent number 4,557,484
- Issue date Dec 10, 1985
- Benjamin F. Sherman
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Cap retaining device
- Patent number 4,432,120
- Issue date Feb 21, 1984
- Benjamin F. Sherman
- B60 - VEHICLES IN GENERAL