Princess of Belgium Stephani; Countess of Lonyay Elemer, CH42474A
Speisewärmer.
On February 1, 1909, the Princess of Belgium Stephani and the Countess of Lonyay Elemer, both living in Schloß Oroszvâr, Hungary, were awarded a patent for developing an innovative food warmer that would prevent fuel spills and protect the surface from excess heat.
Date of Application: 13 February 1908
Date of Issuance: 1 February 1909
For more information, please refer to the following webpage:
Francesca Chiaradia
PhD Student in Economics
My research interests include law and economics, economics of innovation, and information economics.