1869855

Information

• Patent Grant
• 1869855

• References
• Source

• Patent Number

  1,869,855

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1932
  92 years ago

• CPC

  • F24H3/06 - the air being kept separate from the heating medium
  • Y10S165/151 - having hollow blade

• US Classifications

  • 165 - Heat exchange
  • 415 - Rotary kinetic fluid motors or pumps
  • 416 - Fluid reaction surfaces