3294450

Information

• Patent Grant
• 3294450

• References
• Source

• Patent Number

  3,294,450

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1966
  58 years ago

• CPC

  • E21C27/10 - by both slitting and breaking-down

• US Classifications

  • 299 - Mining or in situ disintegration of hard material