3563324

Information

• Patent Grant
• 3563324

• References
• Source

• Patent Number

  3,563,324

• Date Filed

  Not available

• Date Issued

  Tuesday, February 16, 1971
  54 years ago

• CPC

  • E21C35/187 - with arrangement of fluid-spraying nozzles
  • E21C35/22 - Equipment for preventing the formation of, or for removal of, dust
  • E21C2035/226 - Control valves for the spraying liquid used in dust suppression systems

• US Classifications

  • 175 - Boring or penetrating the earth
  • 299 - Mining or in situ disintegration of hard material