3848928

Information

• Patent Grant
• 3848928

• References
• Source

• Patent Number

  3,848,928

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1974
  51 years ago

• CPC

  • E21D23/066 - Pivoted cantilever extensions therefor

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 405 - Hydraulic and earth engineering