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| Keywords: Elisha Otis's Elevator Patent Drawing - NARA - 305889.tif Scope and content Elisha Otis's elevator was the first with a safety catch to guard against the breaking of the cable The Otis Company would become the premier manufacturer of electric elevators General notes 305889 Local identifier 241-PATENTTU-31128 Department of the Interior Patent Office 1849 - 1925 Cartographic and Architectural Records Section Special Media Archives Services Division NWCS-C National Archives at College Park 8601 Adelphi Road College Park MD 20740-6001 1861-01-15 Record group Record Group 241 Records of the Patent and Trademark Office 1836 - 1978 Record group ARC 568 Utility Patent Drawings compiled 1837 - 1911 Series ARC 305888 File unit File unit ARC Variant control numbers NAIL Control Number NWDNC-241-PATENTTU-31128<br /> Other Identifier Patent No 31128 yes Other versions <gallery> File Elisha_Otis's_Elevator_Patent_Drawing_-_NARA_-_305889 tif tif File Elisha_Otis's_Elevator_Patent_Drawing_-_NARA_-_305889 jpg jpg </gallery> NARA-cooperation PD-USGov Otis Elevator Company U S Patent drawings NARA TIF images with categorized JPGs | ||||