2491906

Information

• Patent Grant
• 2491906

• References
• Source

• Patent Number

  2,491,906

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1949
  74 years ago

• CPC

  • G05B1/027 - using impedance bridges

• US Classifications

  • 318 - Electricity: motive power systems
  • 236 - Automatic temperature and humidity regulation