4. Amplifiers
  5. Involving structure other than that of transformers per se

Pao-An Chuang

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Bulb type speaker structure

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Mounting or support feature of housed loudspeaker
Reexamination Certificate

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Shock absorbing and magnetic levitating cushion

Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
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Transformer of power-amplifier module for an audio device

Amplifiers – Involving structure other than that of transformers per se
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2697512

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