1290139

Information

• Patent Grant
• 1290139

• References
• Source

• Patent Number

  1,290,139

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1919
  106 years ago

• CPC

  • F28D1/024 - with an air driving element
  • Y10S165/103 - Valves each controls a radiator section

• US Classifications

  • 165 - Heat exchange
  • 237 - Heating systems
  • 251 - Valves and valve actuation