1493131

Information

• Patent Grant
• 1493131

• References
• Source

• Patent Number

  1,493,131

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1924
  100 years ago

• CPC

  • B23Q3/10 - Auxiliary devices
  • Y10T409/109381 - including circumferentially disposed cutting edges

• US Classifications

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