3703315

Information

• Patent Grant
• 3703315

• References
• Source

• Patent Number

  3,703,315

• Date Filed

  Not available

• Date Issued

  Tuesday, November 21, 1972
  52 years ago

• CPC

  • E21C29/14 - by haulage cable or chain pulling the machine along the working face

• US Classifications

  • 299 - Mining or in situ disintegration of hard material