397888

Information

• Patent Grant
• 397888

• References
• Source

• Patent Number

  397,888

• Date Filed

  Not available

• Date Issued

  Tuesday, February 19, 1889
  135 years ago

• CPC

  • B23D33/04 - for making circular cuts
  • Y10T82/16163 - with pattern, guide or cam means [noncircular product]

• US Classifications

  • 082 - Turning
  • 033 - Geometrical instruments
  • 144 - Woodworking
  • 451 - Abrading