645427

Information

• Patent Grant
• 645427

• References
• Source

• Patent Number

  645,427

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1900
  124 years ago

• CPC

  • B23F23/12 - Other devices
  • Y10T409/108109 - End mill

• US Classifications

  • 409 - Gear cutting, milling, or planing