445321

Information

• Patent Grant
• 445321

• References
• Source

• Patent Number

  445,321

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1891
  134 years ago

• CPC

  • B44B3/002 - using a pantograph
  • Y10T409/301344 - About work axis

• US Classifications

  • 033 - Geometrical instruments
  • 409 - Gear cutting, milling, or planing