1231775

Information

• Patent Grant
• 1231775

• References
• Source

• Patent Number

  1,231,775

• Date Filed

  Not available

• Date Issued

  Tuesday, July 3, 1917
  107 years ago

• CPC

  • B23B31/023 - for screw-threads
  • Y10T279/15 - Threaded grip

• US Classifications

  • 279 - Chucks or sockets