1416742

Information

• Patent Grant
• 1416742

• References
• Source

• Patent Number

  1,416,742

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1922
  102 years ago

• CPC

  • E21C35/02 - Locking equipment for slewable parts

• US Classifications

  • 299 - Mining or in situ disintegration of hard material