![](http://www.alamy.com/thumbs/6/597DC92E-4F7B-4FAC-A601-66F3A4B36B2A/BX88M1.jpg)
mining, ore, push cooker, wood engraving, "Book of Inventions", published by Otto Spamer, Leipzig, 1872, Additional-Rights-Clearences-Not Available
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Keywords: 1870s, 19th, abscission, book, century, cooker, cutting, deep, engineering, engraving, germany, historic, historical, industry, inventions, machine, machines, mining, open-cut, open-pit, opencast, ore, people, published, push, resegregation, segregation, segregations, technologies, technology, underground, wood