3519924

Information

• Patent Grant
• 3519924

• References
• Source

• Patent Number

  3,519,924

• Date Filed

  Not available

• Date Issued

  Tuesday, July 7, 1970
  54 years ago

• CPC

  • G01R23/00 - Arrangements for measuring frequencies Arrangements for analysing frequency spectra
  • G01F1/68 - by using thermal effects
  • G01F1/6886 - Pyroelectric elements
  • G01L21/00 - Vacuum gauges
  • G01R21/00 - Arrangements for measuring electric power or power factor

• US Classifications

  • 324 - Electricity: measuring and testing
  • 073 - Measuring and testing
  • 219 - Electric heating
  • 310 - Electrical generator or motor structure
  • 331 - Oscillators
  • 374 - Thermal measuring and testing