1440375

Information

• Patent Grant
• 1440375

• References
• Source

• Patent Number

  1,440,375

• Date Filed

  Not available

• Date Issued

  Tuesday, January 2, 1923
  102 years ago

• CPC

  • B23G9/004 - Finishing screws
  • Y10T82/30 - Miscellaneous

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus
  • 082 - Turning