3907366

Information

• Patent Grant
• 3907366

• References
• Source

• Patent Number

  3,907,366

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1975
  49 years ago

• CPC

  • E21C35/24 - Remote control specially adapted for machines for slitting or completely freeing the mineral
  • E21C27/28 - by percussive drills with breaking-down means
  • E21C35/20 - General features of equipment for removal of chippings
  • E21C41/16 - Methods of underground mining Layouts therefor
  • E21F13/042 - Vertical hydraulic conveying of coal

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 173 - Tool driving or impacting
  • 406 - Conveyors: fluid current