618894

Information

• Patent Grant
• 618894

• References
• Source

• Patent Number

  618,894

• Date Filed

  Not available

• Date Issued

  Tuesday, February 7, 1899
  126 years ago

• CPC

  • B23D3/02 - for cutting grooves
  • Y10T409/503116 - Inside hollow work
  • Y10T409/507708 - with rack to drive cutter

• US Classifications

  • 409 - Gear cutting, milling, or planing