2989611

Information

• Patent Grant
• 2989611

• References
• Source

• Patent Number

  2,989,611

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1961
  63 years ago

• CPC

  • G05D23/27541 - using expansible solid

• US Classifications

  • 337 - Electricity: electrothermally or thermally actuated switches
  • 099 - Foods and beverages: apparatus
  • 236 - Automatic temperature and humidity regulation