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Zusammenfassung
Telharmonium patent US580035A page 3 of 55 by Thaddeus Cahill, filed 1895-02-04, patented 1897-04-06
Source: https://patents.google.com/patent/US580035A
Tags
Patente
Patentzeichnungen
uns Patentamt
US 580035 ein Thaddeus Cahill Telharmonium Patent
hohe Auflösung
Erfindungen
Datum
1897
Quelle
USPTO
Link
Copyright-info
public domain