1663271

Information

• Patent Grant
• 1663271

• References
• Source

• Patent Number

  1,663,271

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1928
  96 years ago

• CPC

  • F24D19/0004 - In a one pipe system

• US Classifications

  • 138 - Pipes and tubular conduits
  • 237 - Heating systems