Sigrid Miller, US2194609A

Yarn Ball Holder.

1 min read US
Image credit: Miller, S. (1939)

On March 26, 1940, Sigrid Miller of Porter, Minnesota, was awarded a patent for a yarn-ball holder. The device suspended the ball so the yarn could unwind smoothly while remaining stable.

Date of Application: 20 May 1939

Date of Issuance: 26 March 1940

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Francesca Chiaradia
Francesca Chiaradia
PhD Candidate in Economics

My research interests include innovation, law, and information economics.