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Charles A. Spencer (30 mars 1850 – 18 juill. 1850)

Description:

Charles A. Spencer was an American that had built great optical equipment and founded a industry around this time.

Ajouté au bande de temps:

Microscope

2 nov. 2017

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566

Date:

30 mars 1850

18 juill. 1850

~ 3 months and 20 days

Les images:

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