US1142220A
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Electrolyte for the production of alkali and alkaline-earth metals.
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US1050902A
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Economic method of obtaining gases.
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US1019002A
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Process of producing cyanogen compounds.
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US1018802A
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Method of producing nitrogen compounds.
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CA132714A
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Nitrogen production
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CA133071A
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Nitrogen compound production
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US999003A
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Process of obtaining nitrogen.
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US1160811A
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Method for producing nitrogen compounds.
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US1072373A
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Process of producing cyanogen compounds and the like.
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US1116865A
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Process of producing alkali and alkaline-earth metals.
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US1051303A
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Process of producing nitrogen compounds.
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US943132A
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Process of producing nitrids.
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