3478573

Information

• Patent Grant
• 3478573

• References
• Source

• Patent Number

  3,478,573

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1969
  55 years ago

• CPC

  • H05B3/26 - heating conductor mounted on insulating base
  • G01H13/00 - Measuring resonant frequency
  • G01N25/18 - by investigating thermal conductivity
  • G01N27/185 - using a catharometer
  • G01N29/036 - by measuring frequency or resonance of acoustic waves
  • G01R5/22 - Thermoelectric instruments
  • G01R19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
  • G01R21/02 - by thermal methods
  • G01R29/22 - Measuring piezo-electric properties
  • H03H9/08 - Holders with means for regulating temperature
  • G01N2291/0256 - Adsorption, desorption, surface mass change

• US Classifications

  • 073 - Measuring and testing
  • 310 - Electrical generator or motor structure
  • 374 - Thermal measuring and testing