3892076

Information

• Patent Grant
• 3892076

• References
• Source

• Patent Number

  3,892,076

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1975
  49 years ago

• CPC

  • E21C41/24 - for oil-bearing deposits
  • E21F15/06 - Filling-up mechanically

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 299 - Mining or in situ disintegration of hard material