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David B. Dupes

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  • York, SC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sealed carton having a separate inner pour-spout
    • Patent number 6,029,865
    • Issue date Feb 29, 2000
    • Roberts PolyPro, Inc.
    • David B. Dupes
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Plastic pour-spout and container
    • Patent number 5,667,111
    • Issue date Sep 16, 1997
    • Poly Pro, Division of Roberts Systems, Inc.
    • Walter G. Robinson
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL