Sara E. Wiltse, US821391A
Exercising Apparatus for Children, US821391A.
Image credit: Wiltse, S.E. (1905)
On May 22, 1906, Sara E. Wiltse, living in Boston, was awarded a patent for developing a novel apparatus consisting of stairs to enable small children to exercise.
Date of Application: 20 November 1905
Date of Issuance: 22 May 1906
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Francesca Chiaradia
PhD Student in Economics
My research interests include law and economics, economics of innovation, and information economics.