Philipp Reis: inventor of the telephone. A biographical sketch, with documentary testimony, translations of the original papers of the inventor and contemporary publications
Philipp Reis, inventor of the telephone; a biographical sketch, with documentary testimongy, translations of the original papers of the inventor and contemporary publications
Philipp Reis: Inventor of the Telephone: A Biographical Sketch, with Documentary Testimony, Translations of the Original Papers of the Inventor and Contemporary Publications
Polyphase Electric Currents and Alternate-Current Motors
Polyphase electric currents and alternate-current motors