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

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Electrical acoustic converter

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

Reexamination Certificate

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Electrical apparatus with electro-acoustic transducer

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

Reexamination Certificate

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Electrical connector and method for manufacturing a...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having protective or sheilding feature

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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Electrical device and signal cable assembly

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

Patent

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Electrical/mechanical/sound converter and apparatus of...

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

Reexamination Certificate

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Electricity-to-sound transducer

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

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Electro acoustic transducer and loudspeaker

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

Patent

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Electro-acoustic communications unit

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

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Electro-acoustic converter

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

Reexamination Certificate

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Electro-acoustic dynamic transducer system for use in a loud...

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

Reexamination Certificate

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Electro-acoustic micro-transducer having three-mode...

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

Reexamination Certificate

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Electro-acoustic system

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

Reexamination Certificate

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