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1 janv. 1870 - Optometers developed to measure refractive error by Knapp and Badal 1870

Ajouté au bande de temps:

The development of optometry through the ages

ByChristian Pot
10 avr. 2021
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Date:

1 janv. 1870
Maintenaint
~ Il y a 155 ans
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