622872

Information

• Patent Grant
• 622872

• References
• Source

• Patent Number

  622,872

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1899
  125 years ago

• CPC

  • F28D7/024 - the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
  • Y10S165/431 - Manifolds connected in series
  • Y10T29/496 - Multiperforated metal article making

• US Classifications

  • 165 - Heat exchange
  • 029 - Metal working
  • 122 - Liquid heaters and vaporizers
  • 237 - Heating systems