2278957

Information

• Patent Grant
• 2278957

• References
• Source

• Patent Number

  2,278,957

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1942
  82 years ago

• CPC

  • C04B18/025 - Grog
  • C04B35/18 - rich in aluminium oxide

• US Classifications

  • 501 - Compositions: ceramic