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Precious metal recovery
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Patent number 9,441,284
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Issue date Sep 13, 2016
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Tetronics (International) Limited
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David Deegan
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Method for recovering precious metals
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Patent number 4,613,365
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Issue date Sep 23, 1986
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Boliden Aktiebolag
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Hans G. Berg
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Extraction of trace metals from fly ash
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Patent number 4,475,993
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Issue date Oct 9, 1984
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The United States of America as represented by the United States Department o...
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Milton Blander
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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Dore slag treatment
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Patent number 4,404,022
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Issue date Sep 13, 1983
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Noranda Mines Limited
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Peter W. Godbehere
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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2202893
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Patent number 2,202,893
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Issue date Jun 4, 1940
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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2048152
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Patent number 2,048,152
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Issue date Jul 21, 1936
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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1896807
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Patent number 1,896,807
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Issue date Feb 7, 1933
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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1841207
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Patent number 1,841,207
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Issue date Jan 12, 1932
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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1808594
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Patent number 1,808,594
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Issue date Jun 2, 1931
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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1415526
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Patent number 1,415,526
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Issue date May 9, 1922
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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1243681
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Patent number 1,243,681
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Issue date Oct 23, 1917
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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998665
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Patent number 998,665
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Issue date Jul 25, 1911
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...