The audiphone
Subtitle: a new invention that enables the deaf to hear through the medium of the teeth, and many of the deaf and dumb to hear and learn to speak : invented by Richard S. Rhodes : patented throughout the world : principal European office and Audiphone parlours, 225, Regent Street, London, W.
Publisher: Audiphone Parlours
Published: 1882
Place of publication: London
Language: eng
Number of pages: 29
Description: Booklet describing the device with many pages of testimonials.
Notes: Cover title.