TREA

Frankie Rocchetti

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  • Crumpler, WV, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotatable drilling head
    • Patent number 4,444,278
    • Issue date Apr 24, 1984
    • Frankie Rocchetti
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rotatable drilling head
    • Patent number 4,402,371
    • Issue date Sep 6, 1983
    • Frankie Rocchetti
    • E21 - EARTH DRILLING MINING