Harry L. Nelson

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Livermore, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Circuit puzzle
- Patent number 9,770,648
- Issue date Sep 26, 2017
- Harry Lewis Nelson
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Convertible interference sliding block type manipulable puzzle and...
- Patent number 6,116,599
- Issue date Sep 12, 2000
- Binary Arts Corporation
- Harry L. Nelson
- A63 - SPORTS GAMES AMUSEMENTS