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US1281249A
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Process of and apparatus for precipitating materials from solutions.
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US1302813A
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Process of maintaining filters in filtering condition.
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US1302812A
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Filtering apparatus.
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US1302814A
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Process of treating mixtures of liquids and solids.
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US1123778A
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Precipitating metals from solutions.
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US1236737A
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Filter-press and method of preventing the oxidation of the filtrate in the containers thereof.
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US1123685A
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Precipitant for recovering metals from solutions.
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US1049560A
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Process of precipitating materials from solutions.
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US1035941A
|
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Precipitating apparatus of cyanid solutions.
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US1018604A
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Method and apparatus for the precipitation of gold and silver from cyanid solutions.
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CA198099A
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Apparatus for precipitating from metallurgical solutions
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