1563153

Information

• Patent Grant
• 1563153

• References
• Source

• Patent Number

  1,563,153

• Date Filed

  Not available

• Date Issued

  Tuesday, November 24, 1925
  99 years ago

• CPC

  • E21C27/46 - by percussed planing means

• US Classifications

  • 299 - Mining or in situ disintegration of hard material