Category:Johann Heinrich Dräger
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German entrepreneur, engineer and chemist | |||||
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Date of birth | 29 July 1847 Kirchwerder | ||||
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Date of death | 29 May 1917 Lübeck | ||||
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Media in category "Johann Heinrich Dräger"
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HL Damals – Heinrich Dräger sen.jpg 1,874 × 2,624; 556 KB