The telephone, the microphone & the phonograph

Name: The telephone, the microphone & the phonograph
Author: Du Moncel, Th., comte

by Du Moncel, Th., comte

Language: en · 552 downloads on Project Gutenberg

TelephoneMicrophonePhonographTK

In: Category: History - Modern (1750+) · Category: Science - Physics · Category: Engineering & Technology

Public-domain ebook sourced from Project Gutenberg #75683.