2231569

Information

• Patent Grant
• 2231569

• References
• Source

• Patent Number

  2,231,569

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1941
  84 years ago

• CPC

  • G05D7/0676 - by action on flow sources
  • Y10S236/14 - intermittant control
  • Y10T307/872 - Repetitive make and break

• US Classifications

  • 318 - Electricity: motive power systems
  • 236 - Automatic temperature and humidity regulation
  • 307 - Electrical transmission or interconnection systems
  • 310 - Electrical generator or motor structure
  • 340 - Communications: electrical