Category:Alexander Heldring (engineer)
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engineer, consultant & director | |||||
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Date of birth | 25 May 1874 Amsterdam | ||||
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Date of death | 21 September 1938 Amsterdam | ||||
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Alexander Heldring (Amsterdam, 25 mei 1874 - idem, 21 september 1938) was een Nederlands scheikunig ingenieur, raadgevend ingenieur en dagbladuitgever. (bron)
Media in category "Alexander Heldring (engineer)"
The following 3 files are in this category, out of 3 total.
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Gebouw van de Polytechnische school te Delft.jpg 764 × 1,000; 105 KB
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Jacob Merkelbach, Afb B00000002154.jpg 1,341 × 1,784; 290 KB
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Journalisten, persfotografen, SFA022812984.jpg 2,633 × 3,543; 923 KB