381618

Information

• Patent Grant
• 381618

• References
• Source

• Patent Number

  381,618

• Date Filed

  Not available

• Date Issued

  Tuesday, April 24, 1888
  138 years ago

• CPC

  • F28D7/024 - the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
  • Y10S165/428 - including flow director in manifold

• US Classifications

  • 165 - Heat exchange