4. Card, picture, or sign exhibiting
  5. Signs
  6. With raising or lowering means

William S. Thornton

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Helicopter blade pitch control system

Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Responsive to fixed actuator
Patent

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Outdoor pull-down display sign for use with existing outdoor sig

Card – picture – or sign exhibiting – Signs – With raising or lowering means
Patent

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Tennis ball target

Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent

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Profile ID: LFUS-PAI-P-1419799

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