927494

Information

• Patent Grant
• 927494

• References
• Source

• Patent Number

  927,494

• Date Filed

  Not available

• Date Issued

  Tuesday, July 13, 1909
  115 years ago

• CPC

  • F28D7/024 - the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
  • Y10S165/404 - Serially connected separate shells

• US Classifications

  • 165 - Heat exchange
  • 122 - Liquid heaters and vaporizers