Yukio Endo

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Thornton, NH, US

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Patents Grantslast 30 patents

Information Patent Grant
Keyboard entry system
- Patent number 4,694,280
- Issue date Sep 15, 1987
- Quixote Corporation
- Philip E. Rollhaus
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Keyboard entry system
- Patent number 4,638,306
- Issue date Jan 20, 1987
- Quixote Corporation
- Philip Rollhaus
- G06 - COMPUTING CALCULATING COUNTING