4. Electrical audio signal processing systems and devices
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Electroacoustic transducer using diaphragm and method for...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electrostrictive – magnetostrictive – or piezoelectric
Reexamination Certificate

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Electroacoustic transducer using diaphragm and method for...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate

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Electroacoustic transducer with a diaphragm, and method for...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
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Electroacoustic transducer with built in transducer circuit

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
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Electroacoustic transducer with diaphragm securing structure...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
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Electroacoustic transducer with field replaceable diaphragm...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Driven diverse static structure
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Electroacoustic transducer with improved diaphragm attachment

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Patent

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Electroacoustic transducer with improved shock resistance

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Patent

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Electroacoustic transducer with improved tonal quality

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Driven diverse static structure
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Electroacoustic transducer with piezoelectric diaphragm

Electrical audio signal processing systems and devices – Circuitry combined with specific type microphone or loudspeaker – With piezoelectric microphone
Patent

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Electroacoustic transducer with resistance to shock-waves

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
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Electroacoustic transducer with small dimensions

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
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Electroacoustic transducer with small dimensions

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
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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
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Electroacoustic transducers

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
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Electroacoustic transducers comprising vibrating panels

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
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Electroacoustic transducers with increased magnetic stability fo

Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
Patent

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Electroacoustic waveguide transducing

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
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Electroacoustic waveguide transducing

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
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Electroacoustical transducing

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