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William A. Mancini

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  • Providence, RI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hollow, flanged earring post construction
    • Patent number 4,307,582
    • Issue date Dec 29, 1981
    • National Chain Co.
    • William A. Mancini
    • A44 - HABERDASHERY JEWELLERY
  • Information Patent Grant

    Separable fastener
    • Patent number 3,936,914
    • Issue date Feb 10, 1976
    • William A. Mancini
    • A44 - HABERDASHERY JEWELLERY