2424180

Information

• Patent Grant
• 2424180

• References
• Source

• Patent Number

  2,424,180

• Date Filed

  Not available

• Date Issued

  Tuesday, July 15, 1947
  77 years ago

• CPC

  • E21C27/122 - with breaking-down members having a striking action

• US Classifications

  • 299 - Mining or in situ disintegration of hard material