2652742

Information

• Patent Grant
• 2652742

• References
• Source

• Patent Number

  2,652,742

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1953
  71 years ago

• CPC

  • G01J3/16 - with autocollimation

• US Classifications

  • 356 - Optics: measuring and testing
  • 250 - Radiant energy
  • 359 - Optical: systems and elements