Mabel Winkel, US2188168A
Shoe.
Image credit: Winkel, M. (1938)
On January 23, 1940, Mabel Winkel of New York was awarded a patent for designing a novel shoe made with an elastic-like leather upper sole that allowed for easy insertion of the foot.
Date of Application: 3 September 1938
Date of Issuance: 23 January 1940
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Francesca Chiaradia
PhD Student in Economics
My research interests include law and economics, economics of innovation, and information economics.