2289123

Information

• Patent Grant
• 2289123

• References
• Source

• Patent Number

  2,289,123

• Date Filed

  Not available

• Date Issued

  Tuesday, July 7, 1942
  82 years ago

• CPC

  • E21C25/30 - Chain guides

• US Classifications

  • 299 - Mining or in situ disintegration of hard material