4. Optics: measuring and testing
  5. Velocity or velocity/height measuring
  6. With light detector

Dennis A. Johnson

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Baseball base securing device

Games using tangible projectile – Playing field or court game; game element or accessory... – Base for game in which play involves base running
Reexamination Certificate

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Laser velocimeter for near-surface measurements

Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Patent

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Multi-velocity component LDV

Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Patent

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Profile ID: LFUS-PAI-P-573647

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