1547853

Information

• Patent Grant
• 1547853

• References
• Source

• Patent Number

  1,547,853

• Date Filed

  Not available

• Date Issued

  Tuesday, July 28, 1925
  99 years ago

• CPC

  • E01C23/082 - using non-powered tools
  • E01C23/0825 - rotary

• US Classifications

  • 037 - Excavating
  • 172 - Earth working