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Roy Maitland

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  • Laguna Niguel, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ink supply cartridge
    • Patent number 4,267,772
    • Issue date May 19, 1981
    • Count Numbering Machine, Inc.
    • Roy Maitland
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Electro-mechanical marking device
    • Patent number 4,181,560
    • Issue date Jan 1, 1980
    • Count Numbering Machine, Inc.
    • Roy Maitland
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS