4. Electrical audio signal processing systems and devices
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Loudspeaker case structure for video display appliances

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

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Loudspeaker coil suspension system

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

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Loudspeaker coil suspension system

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

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Loudspeaker concealment system

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

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Loudspeaker cone and method for making same

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent

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Loudspeaker cone including plated fabric

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

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Loudspeaker crossover delay equalization

Electrical audio signal processing systems and devices – Including phase control
Patent

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Loudspeaker crossover filter

Electrical audio signal processing systems and devices – Including frequency control – Having crossover filter
Reexamination Certificate

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Loudspeaker damper and method of mounting loudspeaker damper

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

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Loudspeaker demonstrating

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Multiple channel
Patent

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Loudspeaker design

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

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Loudspeaker device

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

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Loudspeaker device

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

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Loudspeaker device

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

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Loudspeaker device

Electrical audio signal processing systems and devices – Loudspeaker feedback
Reexamination Certificate

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Loudspeaker device

Electrical audio signal processing systems and devices – Microphone feedback
Reexamination Certificate

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Loudspeaker device

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

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Loudspeaker device

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Counterwave generation control path
Reexamination Certificate

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Loudspeaker diaphragm

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent

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Loudspeaker diaphragm attaching

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent

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