3495876

Information

• Patent Grant
• 3495876

• References
• Source

• Patent Number

  3,495,876

• Date Filed

  Not available

• Date Issued

  Tuesday, February 17, 1970
  54 years ago

• CPC

  • E21C27/16 - with means for both slitting and breaking-down

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 173 - Tool driving or impacting