Escalator 23
Escalator 23 :
History: (3) Inventors and Manufacturers: (1. 2) Leamon Souder:In 1889, Leamon Souder successfully patented the "stairway", an escalator-type device that featured a "series of steps and links jointed to each other". No model was ever built. This was the first of at least four escalator-style patents issued to Souder, including two for spiral designs (U. S. Patent Nos. 723,325 and 792,623)
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