Library: Search Results
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KEYWORDS: SCIENCE, HEALTH & TECHNOLOGYResults: 261 - 270 of 407 total Next
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Date | Format | Image | Collection | |
September 24, 1844 | Patent | Visual Still | ||
September 24, 1844 | Patent | Visual Still | ||
February 16, 1869 | Patent | Document | ||
February 16, 1869 | Patent | Visual Still | ||
October 22, 1861 | Government Document | Document | ||
October 22, 1861 | Government Document | Visual Still | ||
August 25, 1863 | Patent | Document | ||
August 25, 1863 | Patent | Visual Still | ||
December 18, 1866 | Patent | Document | ||
December 18, 1866 | Patent | Visual Still |