1391564

Information

• Patent Grant
• 1391564

• References
• Source

• Patent Number

  1,391,564

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1921
  103 years ago

• CPC

  • B23B29/03425 - by means of gears and racks
  • Y10T407/2216 - with indicator

• US Classifications

  • 407 - Cutters, for shaping