3680920

Information

• Patent Grant
• 3680920

• References
• Source

• Patent Number

  3,680,920

• Date Filed

  Not available

• Date Issued

  Tuesday, August 1, 1972
  52 years ago

• CPC

  • E21D9/128 - Loader-conveyors with gathering arms

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 198 - Conveyors: power-driven