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Surround sound headphone system

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

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Surround sound headphones

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

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Surround sound loudspeaker system

Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo speaker arrangement
Reexamination Certificate

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Surround sound loudspeaker system

Electrical audio signal processing systems and devices – Binaural and stereophonic – Hearing aid
Patent

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Surround sound loudspeakers

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

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Surround sound loudspeakers and processor

Electrical audio signal processing systems and devices – Binaural and stereophonic – Hearing aid
Patent

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Surround sound panner

Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Reexamination Certificate

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Surround sound processor system

Electrical audio signal processing systems and devices – Binaural and stereophonic
Patent

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Surround sound processor unit

Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent

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Surround sound processor with improved control voltage generator

Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent

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Surround sound processor with improved control voltage generator

Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent

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Surround sound speaker system

Electrical audio signal processing systems and devices – Binaural and stereophonic – Center channel
Reexamination Certificate

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Surround sound speaker system for improved spatial effects

Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent

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Surround sound system for general purpose computer using dual so

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

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Surround sound system for personal computer for interfacing surr

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

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Surround speaker

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

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Surround-sound processing system

Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo speaker arrangement
Reexamination Certificate

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Surround-sound system

Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo speaker arrangement
Reexamination Certificate

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Surrounding structure of a loudspeaker

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

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Surroundless loudspeaker

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

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