Sofia Haag, US1335163A
Hand Loom.
Image credit: Haag, S. (1919)
On March 30, 1920, Sofia Haag of Fort Sheridan, Illinois, obtained a patent for a lightweight, portable hand-loom designed to let inexperienced or bedridden users weave fabric by hand. Her system allowed the warp threads to shift and form different sheds, making it possible to create patterned weaves (e.g., twill, herringbone, or diamond) without the complexity of traditional looms.
Date of Application: 10 November 1919
Date of Issuance: 30 March 1920
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Francesca Chiaradia
PhD Student in Economics
My research interests include law and economics, economics of innovation, and information economics.