972893

Information

• Patent Grant
• 972893

• References
• Source

• Patent Number

  972,893

• Date Filed

  Not available

• Date Issued

  Tuesday, October 18, 1910
  114 years ago

• CPC

  • F21H1/02 - characterised by the material thereof

• US Classifications

  • 252 - Compositions
  • 501 - Compositions: ceramic