3777815

Information

• Patent Grant
• 3777815

• References
• Source

• Patent Number

  3,777,815

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1973
  51 years ago

• CPC

  • F42D1/00 - Blasting methods or apparatus
  • E21B43/2635 - by means of nuclear energy
  • E21C41/00 - Methods of underground or surface mining Lay-outs therefor

• US Classifications

  • 166 - Wells
  • 299 - Mining or in situ disintegration of hard material