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Start Over Subjects Sensory Aids ✖Remove constraint Subjects: Sensory Aids Titles The audiphone: a new invention that enables the deaf to hear through the medium of the teeth, and the deaf and dumb to hear and to learn to speak : invented by Richard S. Rhodes ✖Remove constraint Titles: The audiphone: a new invention that enables the deaf to hear through the medium of the teeth, and the deaf and dumb to hear and to learn to speak : invented by Richard S. Rhodes

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  • The audiphone: a new invention that enables the deaf to hear through the medium of the teeth, and the deaf and dumb to hear and to learn to speak : invented by Richard S. Rhodes1