1138022

Information

• Patent Grant
• 1138022

• References
• Source

• Patent Number

  1,138,022

• Date Filed

  Not available

• Date Issued

  Tuesday, May 4, 1915
  109 years ago

• CPC

  • F24D9/02 - Hot water and steam systems
  • G05D23/08 - with bimetallic element

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 237 - Heating systems