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Two-compartment dosing package
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Patent number 4,673,107
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Issue date Jun 16, 1987
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Sterling Drug, Inc.
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Gerhard Obrist
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Two-compartment package
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Patent number 4,469,252
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Issue date Sep 4, 1984
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Aerosol Service AG
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Gerhard Obrist
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Two-compartment pack
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Patent number 4,340,155
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Issue date Jul 20, 1982
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Aerosol Service AG
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Gerhard Obrist
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL