2162722

Information

• Patent Grant
• 2162722

• References
• Source

• Patent Number

  2,162,722

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1939
  85 years ago

• CPC

  • E21C35/02 - Locking equipment for slewable parts

• US Classifications

  • 299 - Mining or in situ disintegration of hard material