1564394

Information

• Patent Grant
• 1564394

• References
• Source

• Patent Number

  1,564,394

• Date Filed

  Not available

• Date Issued

  Tuesday, December 8, 1925
  99 years ago

• CPC

  • C04B14/307 - Chromium oxide

• US Classifications

  • 501 - Compositions: ceramic
  • 106 - Compositions: coating or plastic
  • 266 - Metallurgical apparatus