3806258

Information

• Patent Grant
• 3806258

• References
• Source

• Patent Number

  3,806,258

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1974
  50 years ago

• CPC

  • G01J1/30 - using electric radiation detectors
  • G01N21/274 - Calibration, base line adjustment, drift correction

• US Classifications

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