3782484

Information

• Patent Grant
• 3782484

• References
• Source

• Patent Number

  3,782,484

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1974
  51 years ago

• CPC

  • E21D9/106 - with percussive tools
  • E21C27/28 - by percussive drills with breaking-down means
  • E21D9/1086 - Drives or transmissions specially adapted therefor

• US Classifications

  • 173 - Tool driving or impacting
  • 248 - Supports