3165361

Information

• Patent Grant
• 3165361

• References
• Source

• Patent Number

  3,165,361

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1965
  60 years ago

• CPC

  • E21F13/068 - Special adaptations for use at the junction of the working face with the gallery

• US Classifications

  • 299 - Mining or in situ disintegration of hard material