1518685

Information

• Patent Grant
• 1518685

• References
• Source

• Patent Number

  1,518,685

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1924
  100 years ago

• CPC

  • E01H8/04 - essentially by non-driven elements Clearing instruments

• US Classifications

  • 037 - Excavating