ID
1689
Nationality
French
Occupation
Physician
Medicine
Inventor
Summary
Late-deafened. To try to help other deaf people like himself, he opened a "mutual help and information" bureau in Paris. Also invented a "dactylophone" consisting of 42 keys, each of which caused a letter or numeral to stand up when pressed. This was to help deaf people communicate with each other and with the hearing.
References
Silence of the Spheres, p.74.
Dates
fl. 1913