3831674

Information

• Patent Grant
• 3831674

• References
• Source

• Patent Number

  3,831,674

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1974
  50 years ago

• CPC

  • F28D9/0012 - the apparatus having an annular form
  • F02C7/08 - Heating air supply before combustion
  • Y10S165/357 - forming annular heat exchanger

• US Classifications

  • 165 - Heat exchange