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3823225
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Patent number 3,823,225
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Issue date Jul 9, 1974
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C01 - INORGANIC CHEMISTRY
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3754079
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Patent number 3,754,079
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Issue date Aug 21, 1973
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C01 - INORGANIC CHEMISTRY
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3695839
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Patent number 3,695,839
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Issue date Oct 3, 1972
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C01 - INORGANIC CHEMISTRY
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2866682
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Patent number 2,866,682
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Issue date Dec 30, 1958
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C01 - INORGANIC CHEMISTRY
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2834649
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Patent number 2,834,649
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Issue date May 13, 1958
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C01 - INORGANIC CHEMISTRY