19900

Information

• Patent Grant
• 19900

• References
• Source

• Patent Number

  19,900

• Date Filed

  Not available

• Date Issued

  Tuesday, April 6, 1858
  166 years ago

• CPC

  • C10J3/10 - using external heating
  • C10B47/22 - in dispersed form

• US Classifications

  • 048 - Gas: heating and illuminating