Roentgens X-ray Machine, 19th Century
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Wilhelm Roentgen, German Physicist #4
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Wilhelm Konrad Roentgen, German #2
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Roentgen Looking Into X-ray Screen
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Wilhelm Konrad Roentgen, German
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Wilhelm Konrad Roentgen, German #1
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Wilhelm Roentgen, German Physicist #6
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Wilhelm Roentgen, First Demonstration
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Wilhelm Roentgen, German Physicist #2
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Wilhelm Roentgen, German Physicist #5
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Wilhelm Roentgen, German Physicist
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Wilhelm Roentgen, German Physicist #3
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Wilhelm Roentgen, German Physicist #1
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