1787623

Information

• Patent Grant
• 1787623

• References
• Source

• Patent Number

  1,787,623

• Date Filed

  Not available

• Date Issued

  Tuesday, January 6, 1931
  94 years ago

• CPC

  • G05D23/028 - with fusing sensing element

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 049 - Movable or removable closures
  • 454 - Ventilation