LandOfFree - US Patents - Listing for Electrical audio signal processing systems and devices

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Loudspeaker suspension

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

Patent

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Loudspeaker suspension

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

Reexamination Certificate

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Loudspeaker suspension for achieving very long excursion

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

Reexamination Certificate

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Loudspeaker system

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

Reexamination Certificate

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Loudspeaker system

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system

Patent

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Loudspeaker system

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

Patent

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Loudspeaker system

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

Reexamination Certificate

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Loudspeaker system

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

Reexamination Certificate

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Loudspeaker system

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

Patent

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Loudspeaker system

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

Reexamination Certificate

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Loudspeaker system

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

Patent

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Loudspeaker 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 system

Electrical audio signal processing systems and devices – Having non-electrical feature – Loudspeakers driven in given phase relationship

Patent

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Loudspeaker system

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Loudspeaker system

Electrical audio signal processing systems and devices – Having non-electrical feature – Loudspeakers driven in given phase relationship

Patent

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Loudspeaker system

Electrical audio signal processing systems and devices – Having non-electrical feature – Loudspeakers driven in given phase relationship

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Loudspeaker system

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Loudspeaker system

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Loudspeaker system

Electrical audio signal processing systems and devices – Having non-electrical feature – Loudspeakers driven in given phase relationship

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Loudspeaker system

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

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