3329343

Information

• Patent Grant
• 3329343

• References
• Source

• Patent Number

  3,329,343

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1967
  57 years ago

• CPC

  • G05D23/1912 - whose output amplitude can take more than two discrete values
  • F24D12/02 - having more than one heat source
  • F24D19/1006 - for water heating systems
  • F24D2200/04 - Gas or oil fired boiler
  • F24D2200/10 - Fire place
  • Y02B30/14 - Central heating systems having more than one heat source

• US Classifications

  • 237 - Heating systems