2861172

Information

• Patent Grant
• 2861172

• References
• Source

• Patent Number

  2,861,172

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1958
  66 years ago

• CPC

  • G01J3/16 - with autocollimation

• US Classifications

  • 356 - Optics: measuring and testing
  • 362 - Illumination