4. Electrical audio signal processing systems and devices
  5. Electro-acoustic audio transducer
  6. Mounting or support feature of housed loudspeaker

Shigehisa Watanabe

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Electromagnetic sound generator

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Patent

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Sound producing device for an electronic instrument such as...

Telephonic communications – Terminal – Housing or housing component
Reexamination Certificate

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Surface mount electromagnetic sound producing device

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

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Profile ID: LFUS-PAI-P-818541

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