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1 janv. 1889 - Danish ophthalmologist Jannik Bjerrum develops and popularises tangent screen perimetry 1889
Ajouté au bande de temps:
The development of optometry through the ages
By
Christian Pot
10 avr. 2021
0
0
766
Date:
1 janv. 1889
Maintenaint
~ Il y a 136 ans
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