4. Photography
  5. With exposure objective focusing means, focusing aid, or...
  6. Lens drive circuit or motor structure

Do-Sun Nam

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Actuator using focusing-substrate

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate

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Image photographing device including diaphragm

Photography – With exposure objective focusing means – focusing aid – or... – Lens drive circuit or motor structure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2310576

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