After a mysterious and lengthy disappearance, the historic patent documents for the Wright Brothers' groundbreaking flying machine have finally resurfaced and are now at home in the National Archives ...
CC0 Usage Conditions ApplyClick for more information. Wilhelm Kress (1836--1913) was an inventor, writer, and lecturer. This collection contains one of Kress' German patents, patent number 8706, for ...
This donation is a photomechanical reproduction enlargement ( 17 1/8 inch by 10 3/4 inch ) of the Wright Brothers drawing of their flying machine Patent No" 821,393 sheet one (original date March 22, ...
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