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Placer mining dredging still one of California's leading industries
Use of gold dredges in California; large gold production; development of design of dredge; power for dredging is usually electric, if available, and is delivered to dredge by submarine shore cable floated on barges; most dredges in California have a-c electric equipment, but in recent years several have been equipped with d-c units and variable speeds. (see also Pac Mar Rev v 37 n 2 Feb 1940 p 20-2)
Placer mining dredging still one of California's leading industries
Use of gold dredges in California; large gold production; development of design of dredge; power for dredging is usually electric, if available, and is delivered to dredge by submarine shore cable floated on barges; most dredges in California have a-c electric equipment, but in recent years several have been equipped with d-c units and variable speeds. (see also Pac Mar Rev v 37 n 2 Feb 1940 p 20-2)
Placer mining dredging still one of California's leading industries
Western Machy Steel World
Romanowitz, C.M. (author) / Sawin, H.A. (author)
1940
3 pages
Article (Journal)
English
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Placer mining dredging still one of California's leading industries
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