2684055

Information

• Patent Grant
• 2684055

• References
• Source

• Patent Number

  2,684,055

• Date Filed

  Not available

• Date Issued

  Tuesday, July 20, 1954
  70 years ago

• CPC

  • E21C3/18 - directly by a piston of an internal-combustion engine

• US Classifications

  • 173 - Tool driving or impacting