3604891

Information

• Patent Grant
• 3604891

• References
• Source

• Patent Number

  3,604,891

• Date Filed

  Not available

• Date Issued

  Tuesday, September 14, 1971
  53 years ago

• CPC

  • F24C7/008 - using electrode heaters

• US Classifications

  • 219 - Electric heating
  • 392 - Electric resistance heating devices