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30 Apr 1799 Jahr - Humphrey Davy

Beschreibung:

discovers pain killing probities of NO2 it was used heavily in dentistry

Zugefügt zum Band der Zeit:

GCSE AQA Medicine through time

Byisaac
5 Jun 2019
0
0
2500

Datum:

30 Apr 1799 Jahr
Jetzt
~ 226 years ago
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