2264256

Information

• Patent Grant
• 2264256

• References
• Source

• Patent Number

  2,264,256

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1941
  83 years ago

• CPC

  • G05D23/2239 - using photoelectric elements

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 250 - Radiant energy
  • 307 - Electrical transmission or interconnection systems
  • 361 - Electricity: electrical systems and devices