1284273

Information

• Patent Grant
• 1284273

• References
• Source

• Patent Number

  1,284,273

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1918
  105 years ago

• CPC

  • E01C23/0926 - with power-driven tools

• US Classifications

  • 173 - Tool driving or impacting