383221

Information

• Patent Grant
• 383221

• References
• Source

• Patent Number

  383,221

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1888
  138 years ago

• CPC

  • B23D1/26 - for planing edges or ridges or cutting grooves
  • Y10T409/50246 - Means for trimming edge [e.g., chamfering, scarfing, etc.]
  • Y10T409/503772 - including rack driven infeed means

• US Classifications

  • 409 - Gear cutting, milling, or planing