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RPJ Development Company, Inc.

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  • Phoenix, AZ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Jewelry pendant
    • Patent number D306835
    • Issue date Mar 27, 1990
    • RPJ Development Company, Inc.
    • Robert P. Johnson
    • D11 - Jewelry, symbolic insignia, and ornaments
  • Information Patent Grant

    Jewelry with interchangeable elements
    • Patent number 4,879,882
    • Issue date Nov 14, 1989
    • RPJ Development Corporation
    • Robert P. Johnson
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Trademarklast 30 trademarks