4. Amusement devices: toys
  5. Aerodynamically supported or retarded
  6. Spinning disc

David E. Silverglate

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Aspherical lens for concentrating diffuse optical radiation

Patent

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Compound catoptric cartesian ovoid lens

Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent

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Flying toy apparatus

Amusement devices: toys – Aerodynamically supported or retarded – Glider
Reexamination Certificate

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Flying toy having fluid displaceable blades

Amusement devices: toys – Aerodynamically supported or retarded – Spinning disc
Patent

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Hollow ball having openings distributed about exterior surface

Animal husbandry – Exerciser or toy
Design Patent

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Profile ID: LFUS-PAI-P-840511

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