3883720

Information

• Patent Grant
• 3883720

• References
• Source

• Patent Number

  3,883,720

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1975
  49 years ago

• CPC

  • H05B3/42 - non-flexible
  • G05D23/27541 - using expansible solid
  • H01H37/12 - Means for adjustment of "ON" or "OFF" operating temperature

• US Classifications

  • 219 - Electric heating