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Compact disc storage package
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Patent number 5,219,417
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Issue date Jun 15, 1993
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Ivy Hill Corporation
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Patrick J. O'Brien
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G11 - INFORMATION STORAGE
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Compact disc storage pack
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Patent number 5,188,230
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Issue date Feb 23, 1993
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Ivy Hill Corporation
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Patrick J. O'Brien
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G11 - INFORMATION STORAGE
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Sift-proof carton and blank therefor
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Patent number 4,982,846
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Issue date Jan 8, 1991
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Ivy Hill Corporation
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Herbert Friedman
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Sift-proof carton and blank therefor
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Patent number 4,941,575
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Issue date Jul 17, 1990
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Ivy Hill Corporation
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Herbert Friedman
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Easy opening, reclosable carton
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Patent number 4,718,557
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Issue date Jan 12, 1988
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Ivy Hill Corporation
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Herbert Friedman
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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