TREA

around mandrels

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Industry

  • CPC
  • B31B2219/2609
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B31Paper goods B31BMAKING BOXES, CARTONS, ENVELOPES OR BAGS OF PAPER OR CARDBOARD B31B2219/00Specific operations carried out during bag making

Current Industry

B31B2219/2609around mandrels
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Bag bottom forming machine and transfer apparatus
    • Patent number 4,279,608
    • Issue date Jul 21, 1981
    • Developak Corporation
    • Jack R. Evers
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Machine and method for manufacturing square or flat bottom bags hav...
    • Patent number 4,230,030
    • Issue date Oct 28, 1980
    • Hanson; Violet M.
    • Violet M. Hanson
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Flat bottom bag
    • Patent number 3,970,241
    • Issue date Jul 20, 1976
    • Violet M. Hanson
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    3503098
    • Patent number 3,503,098
    • Issue date Mar 31, 1970
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3183799
    • Patent number 3,183,799
    • Issue date May 18, 1965
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    2997831
    • Patent number 2,997,831
    • Issue date Aug 29, 1961
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    2997717
    • Patent number 2,997,717
    • Issue date Aug 29, 1961
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    2854899
    • Patent number 2,854,899
    • Issue date Oct 7, 1958
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    2821121
    • Patent number 2,821,121
    • Issue date Jan 28, 1958
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    2381850
    • Patent number 2,381,850
    • Issue date Aug 7, 1945
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    2110939
    • Patent number 2,110,939
    • Issue date Mar 15, 1938
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    1646572
    • Patent number 1,646,572
    • Issue date Oct 25, 1927
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD