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21 mars 1780 - Lentes Bifocales por Benjamin Franklin.
Description:
Lentes bifocales son lentes correctivas que contienen dos potencias diferentes.
Ajouté au bande de temps:
Alexander Chicas 1°-K-ITSI
By
Alexander Rivas
31 oct. 2017
0
0
864
Date:
21 mars 1780
Maintenaint
~ Il y a 244 ans
Les images:
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