LandOfFree - US Patents - Listing for Electrical audio signal processing systems and devices,Electro-acoustic audio transducer,Microphone capsule only

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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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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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Electret covered with an insulated film and an electret...

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

Reexamination Certificate

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Electretization method and apparatus

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

Reexamination Certificate

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Electrical connectors for electro-dynamic loudspeakers

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

Reexamination Certificate

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Electro-acoustic transducer

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

Reexamination Certificate

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Electro-acoustic transducer device

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

Reexamination Certificate

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Electroacoustic microphone

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

Reexamination Certificate

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Electroacoustic transducer

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

Reexamination Certificate

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Electroacoustic transducer

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

Reexamination Certificate

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Electroacoustic transducer

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

Utility Patent

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Electroacoustic transducer having axially extending corrugated s

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

Patent

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Electroacoustic transducer, process of producing the same...

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

Reexamination Certificate

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Electromechanical acoustic liner

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

Reexamination Certificate

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Electrostatic acoustic transducer based on rolling contact...

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

Reexamination Certificate

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Electrostatic microphone

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

Reexamination Certificate

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Filter circuit for an electret microphone

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

Reexamination Certificate

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High directivity microphone array

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

Reexamination Certificate

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High performance microphone and manufacturing method thereof

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

Reexamination Certificate

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IC processed piezoelectric microphone

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

Patent

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