3438620

Information

• Patent Grant
• 3438620

• References
• Source

• Patent Number

  3,438,620

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1969
  55 years ago

• CPC

  • C22B15/0036 - in reverberatory furnaces

• US Classifications

  • 266 - Metallurgical apparatus
  • 501 - Compositions: ceramic