3246730

Information

• Patent Grant
• 3246730

• References
• Source

• Patent Number

  3,246,730

• Date Filed

  Not available

• Date Issued

  Tuesday, April 19, 1966
  58 years ago

• CPC

  • E21D23/0065 - driven, or automatically
  • F15B9/09 - with electrical control means

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 198 - Conveyors: power-driven
  • 405 - Hydraulic and earth engineering