898661

Information

• Patent Grant
• 898661

• References
• Source

• Patent Number

  898,661

• Date Filed

  Not available

• Date Issued

  Tuesday, September 15, 1908
  116 years ago

• CPC

  • E21C27/122 - with breaking-down members having a striking action

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 173 - Tool driving or impacting
  • 198 - Conveyors: power-driven