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Description: | View inside the Allis-Chalmers plant of #27 double discharge Gates Gyratory Breaker during erection. It was built for the Utah Copper Company. There is a m... |
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Description: | Elevated view of shop floor of an early Pawling and Harnischfeger 20-ton type "N" dial controlled cab-operated traveling crane. The crane is in machine sho... |
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