Patent Drawing of Engine - Pénaud & Gauchot 1876 amphibian aeroplane patent Public domain image
Summary
Drawings of the large amphibian aircraft that Alphonse Pénaud and Paul Gauchot patented on February 16, 1876. Patent No. 111.574 for «Un aéro-plane ou appareil aérien volant»
Date
1876
Source
Wikimedia Commons
Copyright info
public domain