3870933

Information

• Patent Grant
• 3870933

• References
• Source

• Patent Number

  3,870,933

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1975
  51 years ago

• CPC

  • F24F11/0009 - Electrical control or safety systems or apparatus
  • G01R29/12 - Measuring electrostatic fields or voltage-potential
  • F24F2011/0031 - Electric charge
  • Y02B30/78 - Ventilation adapted to air quality

• US Classifications

  • 361 - Electricity: electrical systems and devices