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

Danny H. Y. Li

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Model airplane for scientific education and competition

Amusement devices: toys – Aerodynamically supported or retarded – Glider
Patent

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Rubber band driving device for two-propeller model plane

Amusement devices: toys – Aerodynamically supported or retarded – Having motor-driven propeller
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1452484

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