89701

Information

• Patent Grant
• 89701

• References
• Source

• Patent Number

  89,701

• Date Filed

  Not available

• Date Issued

  Tuesday, May 4, 1869
  155 years ago

• CPC

  • F24C15/001 - arrangements for discharging combustion gases
  • Y10S165/115 - Surrounding by a helical flow channel

• US Classifications

  • 165 - Heat exchange
  • 237 - Heating systems