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Siemens’ electric rack-climbing elevator of 1880

Siemens’ electric rack-climbing elevator of 1880.jpg Teagle elevator in an English mill about 1845ThumbnailsTeagle elevator in an English mill about 1845ThumbnailsTeagle elevator in an English mill about 1845ThumbnailsTeagle elevator in an English mill about 1845ThumbnailsTeagle elevator in an English mill about 1845Thumbnails