1699752

Information

• Patent Grant
• 1699752

• References
• Source

• Patent Number

  1,699,752

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1929
  96 years ago

• CPC

  • H01H37/16 - by varying the proportion of input heat received by the thermal element

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 236 - Automatic temperature and humidity regulation
  • 337 - Electricity: electrothermally or thermally actuated switches
  • 338 - Electrical resistors