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KEYWORDS: SCIENCE, HEALTH & TECHNOLOGY

Results: 251 - 260 of 407 total   Next

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Date Format Image Collection
February 1934 Advertisement    Document
January 1848 Article    Document
October 1847 Article    Document
1856 Article    Document
June 1933 Article    Document
June 1933 Article    Document
June 1933 Photograph  A man lies inside an early respirator machine. Visual Still
June 1933 Photograph  Two models of iron lungs. Visual Still
unknown Lithograph  Two images - A woman lying in bed; the same woman lying in bed upright with table Visual Still
September 24, 1844 Patent    Document
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