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

Kazuhiko Kajihara

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Ear-hang type headset

Telephonic communications – Terminal – Housing or housing component
Patent

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Electret condenser microphone and method of producing same

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Microphone capsule only
Reexamination Certificate

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Method of forming an electret condenser microphone

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Microphone capsule only
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1414172

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