3828862

Information

• Patent Grant
• 3828862

• References
• Source

• Patent Number

  3,828,862

• Date Filed

  Not available

• Date Issued

  Tuesday, August 13, 1974
  50 years ago

• CPC

  • E21C33/00 - Trucks or other devices for transporting machines for slitting or completely freeing the mineral from the seam
  • B61C11/00 - Locomotives or motor railcars characterised by the type of means applying the tractive effort Arrangement or disposition of running gear other than normal driving wheel

• US Classifications

  • 173 - Tool driving or impacting
  • 248 - Supports
  • 299 - Mining or in situ disintegration of hard material
  • 405 - Hydraulic and earth engineering