2859022

Information

• Patent Grant
• 2859022

• References
• Source

• Patent Number

  2,859,022

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1958
  66 years ago

• CPC

  • E21F13/086 - Armoured conveyors shifting devices
  • E21D23/10 - with advancing devices separate from the supporting construction
  • E21D23/16 - Hydraulic or pneumatic features

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 091 - Motors: expansible chamber type