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Seymour S. Alter

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  • Great Neck, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for making window envelopes
    • Patent number 4,413,984
    • Issue date Nov 8, 1983
    • New York Envelope Corp.
    • Seymour S. Alter
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Envelope
    • Patent number 4,317,538
    • Issue date Mar 2, 1982
    • Seymour S. Alter
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL