3357742

Information

• Patent Grant
• 3357742

• References
• Source

• Patent Number

  3,357,742

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1967
  57 years ago

• CPC

  • E21F13/086 - Armoured conveyors shifting devices
  • E21C35/12 - along a conveyor for the cut mineral
  • E21D23/0052 - with advancing shifting devices connected therewith
  • E21D23/0445 - Extensions of the base member supporting the conveyor

• US Classifications

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