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21 mar 1780 año - Lentes Bifocales por Benjamin Franklin.

Descripción:

Lentes bifocales son lentes correctivas que contienen dos potencias diferentes.

Añadido al timeline:

Alexander Chicas 1°-K-ITSI

ByAlexander Rivas
31 oct 2017
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0
1040

fecha:

21 mar 1780 año
Ahora mismo
~ 245 years ago

Fotos:

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