1979779

Information

• Patent Grant
• 1979779

• References
• Source

• Patent Number

  1,979,779

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1934
  90 years ago

• CPC

  • F24D9/02 - Hot water and steam systems

• US Classifications

  • 236 - Automatic temperature and humidity regulation