JO
Biografie von John Allen Harker
23. Jan. 1870 – 10. Okt. 1923(53 Jahre)Sterbeort:Highgate, England
English director of research at the Ministry of Munitions and chief assistant at the National Physical Laboratory (1870-1923)
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Biografie
English director of research at the Ministry of Munitions and chief assistant at the National Physical Laboratory (1870-1923)
Lebensstationen
2 Ereignisse1870
Geboren in Alston, England
1923