1770339

Information

• Patent Grant
• 1770339

• References
• Source

• Patent Number

  1,770,339

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1930
  95 years ago

• CPC

  • F23N3/047 - using mechanical means
  • Y10S236/16 - Relief spring

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 122 - Liquid heaters and vaporizers
  • 126 - Stoves and furnaces