3506824

Information

• Patent Grant
• 3506824

• References
• Source

• Patent Number

  3,506,824

• Date Filed

  Not available

• Date Issued

  Tuesday, April 14, 1970
  54 years ago

• CPC

  • G01N30/74 - Optical detectors
  • G01N2030/8429 - adding modificating material

• US Classifications

  • 073 - Measuring and testing
  • 250 - Radiant energy