1860639

Information

• Patent Grant
• 1860639

• References
• Source

• Patent Number

  1,860,639

• Date Filed

  Not available

• Date Issued

  Tuesday, May 31, 1932
  92 years ago

• CPC

  • F24H3/06 - the air being kept separate from the heating medium
  • Y10S165/329 - Corrugated fin attached to heat transfer surface

• US Classifications

  • 165 - Heat exchange
  • 237 - Heating systems