683981

Information

• Patent Grant
• 683981

• References
• Source

• Patent Number

  683,981

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1901
  123 years ago

• CPC

  • F21H1/02 - characterised by the material thereof

• US Classifications

  • 252 - Compositions
  • 106 - Compositions: coating or plastic