1524371

Information

• Patent Grant
• 1524371

• References
• Source

• Patent Number

  1,524,371

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1925
  99 years ago

• CPC

  • E21C47/10 - for quarrying stone, sand, gravel, or clay

• US Classifications

  • 037 - Excavating
  • 299 - Mining or in situ disintegration of hard material