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3393977
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Patent number 3,393,977
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Issue date Jul 23, 1968
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C01 - INORGANIC CHEMISTRY
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3373000
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Patent number 3,373,000
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Issue date Mar 12, 1968
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C01 - INORGANIC CHEMISTRY
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3046094
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Patent number 3,046,094
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Issue date Jul 24, 1962
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C01 - INORGANIC CHEMISTRY
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3026179
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Patent number 3,026,179
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Issue date Mar 20, 1962
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C01 - INORGANIC CHEMISTRY
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3000694
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Patent number 3,000,694
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Issue date Sep 19, 1961
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C01 - INORGANIC CHEMISTRY
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2992073
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Patent number 2,992,073
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Issue date Jul 11, 1961
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C01 - INORGANIC CHEMISTRY
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2972518
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Patent number 2,972,518
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Issue date Feb 21, 1961
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C07 - ORGANIC CHEMISTRY
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2904398
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Patent number 2,904,398
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Issue date Sep 15, 1959
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C01 - INORGANIC CHEMISTRY
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2897055
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Patent number 2,897,055
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Issue date Jul 28, 1959
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C07 - ORGANIC CHEMISTRY