TREA

Constantin BURCA

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  • Calgary, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Roller stabilizer
    • Patent number 6,109,374
    • Issue date Aug 29, 2000
    • Orbital Machinig and Manufacturing Ltd.
    • Constantin Burca
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents