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Artist's rendition of Ralph Borthwick, Moses C. Ireland, Edwin T. Jones, John Wilson and James Pierce's 1881 IMPROVEMENTS ON SUBMARINE GOLD MINING APPARATUS

"Improvements on Submarine Gold Mining Apparatus." Patent no. 12915, filed by Ralph Borthwick, Moses C. Ireland, Edwin T. Jones, John Wilson and James Pierce, 1881
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Created: 2005-11-22 Updated: 2006-05-11	Top of page	Terms and Conditions