4. Optics: image projectors
  5. Pointer

Sheng-Hsiung Chang

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Electroplating anode titanium basket

Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent

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Fan control system

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Reexamination Certificate

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Portable audio-visual apparatus of wireless microphone combined

Optics: image projectors – Pointer
Patent

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Roller skate

Games – toys – and sports goods – Toy – Representation or scale model
Patent

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Structure for in-line roller skates

Land vehicles – Skates – Wheeled skate
Patent

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Profile ID: LFUS-PAI-P-45457

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