3890793

Information

• Patent Grant
• 3890793

• References
• Source

• Patent Number

  3,890,793

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1975
  49 years ago

• CPC

  • E21D23/085 - acting on a conveyor or a guide for the mining machine

• US Classifications

  • 405 - Hydraulic and earth engineering