Filters: Subject: "Copper industry"
26 - 50 of 29
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TitleDateTypeSetname
26 Inspecting and cleaning wire bars at the Garfield refinery.Imageuum_map
27 Kennecott Research Center p.1Imagedha_cp
28 Louis S. CatesImagedha_cp
29 Robert Campbell GemmellImagedha_cp
26 - 50 of 29