3243964

Information

• Patent Grant
• 3243964

• References
• Source

• Patent Number

  3,243,964

• Date Filed

  Not available

• Date Issued

  Tuesday, April 5, 1966
  58 years ago

• CPC

  • E21D23/0065 - driven, or automatically
  • E21D23/14 - Effecting automatic sequential movement of supports

• US Classifications

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