Eugene R. Smarrella

Person

  • Shinnston, WV, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for roof drilling

    • Patent number 4,086,972
    • Issue date May 2, 1978
    • Carmet Company
    • Lloyd B. Hansen
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method of roof drilling

    • Patent number 4,019,590
    • Issue date Apr 26, 1977
    • Carmet Company
    • Lloyd B. Hansen
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for roof drilling

    • Patent number 4,009,760
    • Issue date Mar 1, 1977
    • Carmet Company
    • Lloyd B. Hansen
    • E21 - EARTH DRILLING MINING