2183262

Information

• Patent Grant
• 2183262

• References
• Source

• Patent Number

  2,183,262

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1939
  85 years ago

• CPC

  • B23Q11/0046 - by sucking
  • E21B21/015 - Means engaging the bore entrance
  • Y02P70/171 - Devices or processes for removing and reusing chips
  • Y10S29/086 - Hood encased cutter
  • Y10S29/104 - Tool or work attached

• US Classifications

  • 175 - Boring or penetrating the earth
  • 029 - Metal working