チチェスター・ベル
アメリカ合衆国特許第 341,213号 Transmitting And Recording Sounds By Radiant Energy, filed November 1885, issued May 1886 (with Alexander Bell and Charles Tainter)
アメリカ合衆国特許第 341,214号 Recording and Reproducing Speech and Other Sounds (improvements include compliant cutting head, wax surface, and constant linear velocity disk), filed June 1885, issued May 1886 (with Charles Tainter)