938996

Information

• Patent Grant
• 938996

• References
• Source

• Patent Number

  938,996

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1909
  115 years ago

• CPC

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

• US Classifications

  • 279 - Chucks or sockets
  • 470 - Threaded, headed fastener, or washer making: process and apparatus