2581146

Information

• Patent Grant
• 2581146

• References
• Source

• Patent Number

  2,581,146

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1952
  72 years ago

• CPC

  • F22D1/006 - with heating tubes
  • F22D11/06 - for returning condensate to boiler

• US Classifications

  • 237 - Heating systems