3623770

Information

• Patent Grant
• 3623770

• References
• Source

• Patent Number

  3,623,770

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1971
  53 years ago

• CPC

  • E21B43/285 - Melting minerals

• US Classifications

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