1683045

Information

• Patent Grant
• 1683045

• References
• Source

• Patent Number

  1,683,045

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1928
  96 years ago

• CPC

  • E21C27/38 - Machine stationary while planing in an arc

• US Classifications

  • 299 - Mining or in situ disintegration of hard material