2375159

Information

• Patent Grant
• 2375159

• References
• Source

• Patent Number

  2,375,159

• Date Filed

  Not available

• Date Issued

  Tuesday, May 1, 1945
  79 years ago

• CPC

  • G05D23/2239 - using photoelectric elements

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 250 - Radiant energy
  • 318 - Electricity: motive power systems
  • 324 - Electricity: measuring and testing
  • 374 - Thermal measuring and testing