3666025

Information

• Patent Grant
• 3666025

• References
• Source

• Patent Number

  3,666,025

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1972
  52 years ago

• CPC

  • E21C3/24 - directly by air, steam, or gas pressure
  • E21B44/06 - in response to the flow or pressure of the motive fluid of the drive

• US Classifications

  • 173 - Tool driving or impacting
  • 091 - Motors: expansible chamber type