TREA

Fredy Sierra

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multiple drum handling apparatus
    • Patent number 9,206,025
    • Issue date Dec 8, 2015
    • Delta Petroleum Company, Inc.
    • Fredy Sierra
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

  • Information Patent Application

    Multiple Drum Handling Apparatus
    • Publication number 20140049062
    • Publication date Feb 20, 2014
    • Delta Petroleum Company, Inc.
    • Fredy Sierra
    • B66 - HOISTING LIFTING HAULING