2610841

Information

• Patent Grant
• 2610841

• References
• Source

• Patent Number

  2,610,841

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1952
  72 years ago

• CPC

  • E21C27/46 - by percussed planing means

• US Classifications

  • 299 - Mining or in situ disintegration of hard material