3301599

Information

• Patent Grant
• 3301599

• References
• Source

• Patent Number

  3,301,599

• Date Filed

  Not available

• Date Issued

  Tuesday, January 31, 1967
  57 years ago

• CPC

  • E21C47/02 - for coal, brown coal, or the like

• US Classifications

  • 299 - Mining or in situ disintegration of hard material