3456984

Information

• Patent Grant
• 3456984

• References
• Source

• Patent Number

  3,456,984

• Date Filed

  Not available

• Date Issued

  Tuesday, July 22, 1969
  55 years ago

• CPC

  • E21C25/08 - Mountings for the rods or drums

• US Classifications

  • 299 - Mining or in situ disintegration of hard material