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Jan J. Wichers
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Jan J. Wichers

Dutch military officer

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submarine development

  • USS Nautilus
    In submarine: World War II

    …to a Dutch officer, Lieutenant Jan J. Wichers, who in 1933 advanced the idea of a breathing tube to supply fresh air to a submarine’s diesel engines while it was running submerged. The Netherlands Navy began using snorkels in 1936, and some fell into German hands in 1940. With the…

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