1487709

Information

• Patent Grant
• 1487709

• References
• Source

• Patent Number

  1,487,709

• Date Filed

  Not available

• Date Issued

  Tuesday, March 25, 1924
  100 years ago

• CPC

  • F28D21/0008 - Air heaters
  • Y10S165/901 - Heat savers
  • Y10T137/1116 - Periodically actuated valve

• US Classifications

  • 126 - Stoves and furnaces
  • 137 - Fluid handling
  • 165 - Heat exchange