1473729

Information

• Patent Grant
• 1473729

• References
• Source

• Patent Number

  1,473,729

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1923
  101 years ago

• CPC

  • E21C29/08 - Anchoring arrangements

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 212 - Traversing hoists