Anemo-barometer-vane with automatic indications emission (Machine-translation by Google Translate, not legally binding)

摘要

"Anemo-Barometer-Weather vane with automatic emission of indications" which is characterized in that a telegraphic signal in advance agreed, issued by an airplane that is about to land, this device provides the data of the atmospheric pressure prevailing at the landing site after capturing said signal. (Machine-translation by Google Translate, not legally binding)