3448971

Information

• Patent Grant
• 3448971

• References
• Source

• Patent Number

  3,448,971

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1969
  55 years ago

• CPC

  • F27B13/02 - of multiple-chamber type with permanent partitions Combinations of furnaces
  • C04B35/18 - rich in aluminium oxide

• US Classifications

  • 432 - Heating