3847438

Information

• Patent Grant
• 3847438

• References
• Source

• Patent Number

  3,847,438

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1974
  50 years ago

• CPC

  • E21C27/32 - by adjustable or non-adjustable planing means with or without loading arrangements
  • E21C31/08 - for adjusting parts of the machines
  • E21C35/08 - Guiding the machine

• US Classifications

  • 299 - Mining or in situ disintegration of hard material