1483549

Information

• Patent Grant
• 1483549

• References
• Source

• Patent Number

  1,483,549

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1924
  101 years ago

• CPC

  • E21D17/082 - of sliding type
  • E21C27/02 - solely by slitting

• US Classifications

  • 299 - Mining or in situ disintegration of hard material