3800422

Information

• Patent Grant
• 3800422

• References
• Source

• Patent Number

  3,800,422

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1974
  50 years ago

• CPC

  • B43L13/007 - Contour tracing devices
  • B25H7/04 - Devices
  • G01B5/004 - for measuring coordinates of points

• US Classifications

  • 033 - Geometrical instruments