3531162

Information

• Patent Grant
• 3531162

• References
• Source

• Patent Number

  3,531,162

• Date Filed

  Not available

• Date Issued

  Tuesday, September 29, 1970
  54 years ago

• CPC

  • E21D23/26 - Hydraulic or pneumatic control
  • E21C35/14 - Equipment for pressing the conveyor towards the working face
  • E21D23/0065 - driven, or automatically
  • E21D23/144 - Measuring the advance of support units with respect to internal points of reference

• US Classifications

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