3809377

Information

• Patent Grant
• 3809377

• References
• Source

• Patent Number

  3,809,377

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • C23C8/06 - using gases
  • C21D9/0031 - Rotary furnaces with horizontal or slightly inclined axis

• US Classifications

  • 266 - Metallurgical apparatus
  • 432 - Heating