1974844

Information

• Patent Grant
• 1974844

• References
• Source

• Patent Number

  1,974,844

• Date Filed

  Not available

• Date Issued

  Tuesday, September 25, 1934
  90 years ago

• CPC

  • F23N3/047 - using mechanical means
  • F23N2031/16 - using melting materials or shape memory alloys
  • Y10T74/11 - Tripping mechanism

• US Classifications

  • 074 - Machine element or mechanism
  • 126 - Stoves and furnaces
  • 169 - Fire extinguishers
  • 236 - Automatic temperature and humidity regulation