3269777

Information

• Patent Grant
• 3269777

• References
• Source

• Patent Number

  3,269,777

• Date Filed

  Not available

• Date Issued

  Tuesday, August 30, 1966
  58 years ago

• CPC

  • E21F13/042 - Vertical hydraulic conveying of coal
  • F04F7/02 - Hydraulic rams

• US Classifications

  • 406 - Conveyors: fluid current