1440376

Information

• Patent Grant
• 1440376

• References
• Source

• Patent Number

  1,440,376

• Date Filed

  Not available

• Date Issued

  Tuesday, January 2, 1923
  102 years ago

• CPC

  • B23G9/004 - Finishing screws
  • Y10T409/304536 - including means to infeed work to cutter

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus
  • 409 - Gear cutting, milling, or planing