Olympia de Mendonca Cortez; Eliza de Menezes, GB130820A
Improvements in the Manufacture and Printing of Maps in Relief.
Image credit: De Mendonca Cortez, O. & de Menezes, E. (1918)
On August 14, 1919, Olympia de Mendonca Cortez and Eliza de Menezes, two spinsters of Lisbon, patented a faster, more economical way to make raised-relief maps. Their method printed the whole map first, then embossed it all at once over a layered die, using grouped contour pieces and durable electrotypes to speed production.
Date of Application: 5 September 1918
Date of Issuance: 14 August 1919
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Francesca Chiaradia
PhD Candidate in Economics
My research interests include innovation, law, and information economics.