3212589

Information

• Patent Grant
• 3212589

• References
• Source

• Patent Number

  3,212,589

• Date Filed

  Not available

• Date Issued

  Tuesday, October 19, 1965
  59 years ago

• CPC

  • E21B7/027 - Drills for drilling shallow holes
  • E21B3/035 - with slipping or elastic transmission

• US Classifications

  • 173 - Tool driving or impacting