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KEYWORDS: SCIENCE, HEALTH & TECHNOLOGY

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Date Format Image Collection
September 1932 Illustration  Drawing of a man typing with the help of a spring suspended from the ceiling. Visual Still
August 1931 Illustration  A drawing of the basic wheelchair in use at Warm Springs. Visual Still
February 1933 Illustration  A design drawing of a ramp. Visual Still
224.
Steps
February 1933 Illustration  A design drawing of stairs with railings. Visual Still
March 1877 Government Document    Document
January 1873 Government Document    Document
January 1986 Government Document    Document
October 22, 1861 Government Document    Document
October 22, 1861 Government Document  Design drawing of J. Ruth Invalid Carriage. Visual Still
1874 Government Document  Chart Showing The Distribution By Age And Sex Of Blindness. Visual Still
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