4. Electrical audio signal processing systems and devices
  5. Electro-acoustic audio transducer
  6. Plural or compound reproducers

Jin-Chou Tsai

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Bluetooth earphone set with wire control function

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate

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Interference-free transmitting receiving earset

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate

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Interference-free transmitting receiving earset

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate

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Low-noise transmitting receiving earset

Telephonic communications – Terminal – Housing or housing component
Reexamination Certificate

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Safety hypodermic syringe

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2399274

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