3861806

Information

• Patent Grant
• 3861806

• References
• Source

• Patent Number

  3,861,806

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1975
  49 years ago

• CPC

  • G01C1/02 - Theodolites
  • G01B9/10 - Goniometers for measuring angles between surfaces
  • G01B11/26 - for measuring angles or tapers for testing the alignment of axes

• US Classifications

  • 356 - Optics: measuring and testing
  • 250 - Radiant energy