Lot · Science, Inventor
Willem Johan Kolff- Signed First Day Cover
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Thu · May 28, 2026
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ZIP 809**
blitz_collectibles
1,861 ratings · 99.90% positive
Description
From the sellerIn excellent condition. Willem Johan "Pim" Kolff (February 14, 1911 – February 11, 2009) was a pioneer of hemodialysis, artificial heart, as well as in the entire field of artificial organs. He made his major discoveries in the field of dialysis for kidney failure during the Second World War.
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