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Applause device

Communications: electrical – Audible indication – Simulation
Reexamination Certificate

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Applause device

Communications: electrical – Audible indication – Simulation
Reexamination Certificate

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Canine auditory transmission apparatus

Communications: electrical – Audible indication – Simulation
Patent

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Classic automobile sound processor

Communications: electrical – Audible indication – Simulation
Reexamination Certificate

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Digital horn for a motor vehicle

Communications: electrical – Audible indication – Simulation
Reexamination Certificate

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Electrical noise generation circuits for use in conjunction with

Communications: electrical – Audible indication – Simulation
Patent

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Fire sound simulator

Communications: electrical – Audible indication – Simulation
Patent

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Infrasound hazard-warning method and device for alerting...

Communications: electrical – Audible indication – Simulation
Reexamination Certificate

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Interchangeable sound effect device

Communications: electrical – Audible indication – Simulation
Reexamination Certificate

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Interchangeable sound effect device

Communications: electrical – Audible indication – Simulation
Patent

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Shaped modulation audible alarm

Communications: electrical – Audible indication – Simulation
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Sound producing device stimulated by petting

Communications: electrical – Audible indication – Simulation
Patent

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