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3871912
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Patent number 3,871,912
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Issue date Mar 18, 1975
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H01 - BASIC ELECTRIC ELEMENTS
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3811963
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Patent number 3,811,963
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Issue date May 21, 1974
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C30 - CRYSTAL GROWTH
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3619283
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Patent number 3,619,283
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Issue date Nov 9, 1971
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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3488157
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Patent number 3,488,157
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Issue date Jan 6, 1970
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C30 - CRYSTAL GROWTH
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3472685
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Patent number 3,472,685
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Issue date Oct 14, 1969
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C30 - CRYSTAL GROWTH
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3345141
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Patent number 3,345,141
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Issue date Oct 3, 1967
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C30 - CRYSTAL GROWTH
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3260573
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Patent number 3,260,573
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Issue date Jul 12, 1966
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C30 - CRYSTAL GROWTH
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3172778
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Patent number 3,172,778
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Issue date Mar 9, 1965
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C30 - CRYSTAL GROWTH
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3113056
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Patent number 3,113,056
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Issue date Dec 3, 1963
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C30 - CRYSTAL GROWTH
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2944975
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Patent number 2,944,975
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Issue date Jul 12, 1960
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C30 - CRYSTAL GROWTH