3898554

Information

• Patent Grant
• 3898554

• References
• Source

• Patent Number

  3,898,554

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1975
  49 years ago

• CPC

  • G08C19/04 - using variable resistance
  • G01K7/021 - Particular circuit arrangements
  • G01R17/02 - Arrangements in which the value to be measured is automatically compared with a reference value
  • H03F2200/261 - Amplifier which being suitable for instrumentation applications

• US Classifications

  • 323 - Electricity: power supply or regulation systems
  • 340 - Communications: electrical
  • 374 - Thermal measuring and testing