3490692

Information

• Patent Grant
• 3490692

• References
• Source

• Patent Number

  3,490,692

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1970
  55 years ago

• CPC

  • G05D23/128 - the fluid being combustible

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 251 - Valves and valve actuation
  • 337 - Electricity: electrothermally or thermally actuated switches