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Photograph of a half tone print

Radiomedicine

1896
Photograph of a half tone print of a drawing of the first form of the Coolidge X-ray tube, introduced in 1913

Photograph of a half tone print of a drawing of th

Radiomedicine

1913
Photograph of a half tone print of a drawing of the Ruhmkorff coil, used by Roentgen at the time of his discovery of X-rays

Photograph of a half tone print of a drawing of th

Radiomedicine
Photograph of a half tone print of a radiograph, taken by Roentgen, of a box of weights, soon after his discovery of X-rays

Photograph of a half tone print of a radiograph, t

Radiomedicine