1834987

Information

• Patent Grant
• 1834987

• References
• Source

• Patent Number

  1,834,987

• Date Filed

  Not available

• Date Issued

  Tuesday, December 8, 1931
  93 years ago

• CPC

  • G05D22/02 - characterised by the use of electric means
  • Y10S200/40 - Moisture

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 073 - Measuring and testing
  • 200 - Electricity: circuit makers and breakers