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2 janv. 1930 - Invento del plexiglás (polimetilmetacrilato) por Rudolf Baer y William Chalmers, un plástico transparente y resistente, reemplazando el vidrio en muchas aplicaciones.

Ajouté au bande de temps:

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il y a 4 mois

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0

18

Date:

2 janv. 1930

Maintenaint

~ Il y a 95 ans

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