TREA

Royal Hinge & Die Co., Inc.

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Organization

  • Plainville, MA, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Jewelry display box
    • Patent number 4,732,269
    • Issue date Mar 22, 1988
    • Royal Hinge & Die Co., Inc.
    • Armand W. Roy
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Article holder and method of manufacture thereof
    • Patent number 4,341,300
    • Issue date Jul 27, 1982
    • Royal Hinge & Die Co., Inc.
    • Armand W. Roy
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Jewelry display box
    • Patent number 3,937,319
    • Issue date Feb 10, 1976
    • Royal Hinge & Die Company, Inc.
    • Armand W. Roy
    • A45 - HAND OR TRAVELLING ARTICLES