3787091

Information

• Patent Grant
• 3787091

• References
• Source

• Patent Number

  3,787,091

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1974
  50 years ago

• CPC

  • E21C25/34 - Chains

• US Classifications

  • 299 - Mining or in situ disintegration of hard material