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1 janv. 1877 - Эдмон Фреми разработал метод коммерческого изготовления рубинов из расплава

Description:

Создал первые камни ювелирного качества.

Ajouté au bande de temps:

Crystallography

ByArseniy Baskakov
26 févr. 2020

Date:

1 janv. 1877
Maintenaint
~ Il y a 147 ans
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