2889630

Information

• Patent Grant
• 2889630

• References
• Source

• Patent Number

  2,889,630

• Date Filed

  Not available

• Date Issued

  Tuesday, June 9, 1959
  65 years ago

• CPC

  • G01C3/12 - with monocular observation at a single point
  • G01C3/10 - using a parallactic triangle with variable angles and a base of fixed length in the observation station

• US Classifications

  • 356 - Optics: measuring and testing