2631489

Information

• Patent Grant
• 2631489

• References
• Source

• Patent Number

  2,631,489

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1953
  71 years ago

• CPC

  • G01J3/16 - with autocollimation
  • G01J3/12 - Generating the spectrum Monochromators

• US Classifications

  • 356 - Optics: measuring and testing
  • 033 - Geometrical instruments
  • 250 - Radiant energy