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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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27 Okt 1880 Jahr - H. C. Gram developed improved staining methods (1880)
Zugefügt zum Band der Zeit:
Microscope
By
Kane Anderson
20 Sep 2017
0
0
901
Datum:
27 Okt 1880 Jahr
Jetzt
~ 145 years ago
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