3449565

Information

• Patent Grant
• 3449565

• References
• Source

• Patent Number

  3,449,565

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1969
  55 years ago

• CPC

  • G01N21/3103 - Atomic absorption analysis
  • G01N21/314 - with comparison of measurements at specific and non-specific wavelengths
  • G01J1/1626 - Arrangements with two photodetectors, the signals of which are compared
  • G01J2003/1226 - Interference filters
  • G01N2021/3107 - Cold vapor
  • G01N2021/3118 - Commutating sources

• US Classifications

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