3278237

Information

• Patent Grant
• 3278237

• References
• Source

• Patent Number

  3,278,237

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1966
  58 years ago

• CPC

  • E21C27/124 - with rotatable cutters provided with breaking-down members

• US Classifications

  • 299 - Mining or in situ disintegration of hard material