3653772

Information

• Patent Grant
• 3653772

• References
• Source

• Patent Number

  3,653,772

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1972
  52 years ago

• CPC

  • G01N21/256 - Arrangements using two alternating lights and one detector
  • G01J1/30 - using electric radiation detectors

• US Classifications

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