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3519393
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Patent number 3,519,393
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Issue date Jul 7, 1970
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C30 - CRYSTAL GROWTH
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3453370
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Patent number 3,453,370
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Issue date Jul 1, 1969
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C30 - CRYSTAL GROWTH
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3310383
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Patent number 3,310,383
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Issue date Mar 21, 1967
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C30 - CRYSTAL GROWTH
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3243266
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Patent number 3,243,266
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Issue date Mar 29, 1966
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C30 - CRYSTAL GROWTH
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3099550
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Patent number 3,099,550
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Issue date Jul 30, 1963
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C30 - CRYSTAL GROWTH
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2949348
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Patent number 2,949,348
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Issue date Aug 16, 1960
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C30 - CRYSTAL GROWTH
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2926075
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Patent number 2,926,075
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Issue date Feb 23, 1960
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C30 - CRYSTAL GROWTH
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2904411
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Patent number 2,904,411
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Issue date Sep 15, 1959
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C30 - CRYSTAL GROWTH
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2895835
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Patent number 2,895,835
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Issue date Jul 21, 1959
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C30 - CRYSTAL GROWTH
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2852351
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Patent number 2,852,351
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Issue date Sep 16, 1958
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C30 - CRYSTAL GROWTH
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2739045
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Patent number 2,739,045
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Issue date Mar 20, 1956
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C30 - CRYSTAL GROWTH
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2739046
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Patent number 2,739,046
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Issue date Mar 20, 1956
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C30 - CRYSTAL GROWTH