3421917

Information

• Patent Grant
• 3421917

• References
• Source

• Patent Number

  3,421,917

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1969
  55 years ago

• CPC

  • C04B33/22 - Grog products
  • C04B35/18 - rich in aluminium oxide

• US Classifications

  • 501 - Compositions: ceramic