4. Games using tangible projectile
  5. Playing field or court game; game element or accessory...
  6. Having at least two different types of game elements used in...

Francis E. McInnis

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Automated tennis line calling system

Games using tangible projectile – Playing field or court game; game element or accessory... – Having at least two different types of game elements used in...
Patent

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Triboelectric sensor and methods for manufacturing

Measuring and testing – Vibration – Sensing apparatus
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1123750

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