2389749

Information

• Patent Grant
• 2389749

• References
• Source

• Patent Number

  2,389,749

• Date Filed

  Not available

• Date Issued

  Tuesday, November 27, 1945
  79 years ago

• CPC

  • E01B31/06 - Making holes
  • Y10T279/17965 - Drill type

• US Classifications

  • 279 - Chucks or sockets