2808994

Information

• Patent Grant
• 2808994

• References
• Source

• Patent Number

  2,808,994

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1957
  67 years ago

• CPC

  • F24D19/0009 - In a two pipe system
  • F24H9/122 - for water heaters

• US Classifications

  • 237 - Heating systems
  • 285 - Pipe joints or couplings