4. Telephonic communications
  5. Terminal
  6. Housing or housing component

Chin-Shui Hung

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Telephone receiver having a hollow portion

Telephonic communications – Terminal – Housing or housing component
Reexamination Certificate

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Thin type speaker having a secondary diaphragm

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2025490

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