3596997

Information

• Patent Grant
• 3596997

• References
• Source

• Patent Number

  3,596,997

• Date Filed

  Not available

• Date Issued

  Tuesday, August 3, 1971
  53 years ago

• CPC

  • E21D9/1033 - by a transversely extending boom being pivotable about a longitudinal axis

• US Classifications

  • 299 - Mining or in situ disintegration of hard material