2802653

Information

• Patent Grant
• 2802653

• References
• Source

• Patent Number

  2,802,653

• Date Filed

  Not available

• Date Issued

  Tuesday, August 13, 1957
  67 years ago

• CPC

  • E21D9/117 - mounted for orientating or sideways shifting relative to the frame

• US Classifications

  • 299 - Mining or in situ disintegration of hard material