489743

Information

• Patent Grant
• 489743

• References
• Source

• Patent Number

  489,743

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1893
  132 years ago

• CPC

  • F27D25/001 - comprising breaking tools
  • F27B7/2075 - Removing incrustations

• US Classifications

  • 432 - Heating