421217

Information

• Patent Grant
• 421217

• References
• Source

• Patent Number

  421,217

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1890
  134 years ago

• CPC

  • C30B25/14 - Feed and outlet means for the gases Modifying the flow of the reactive gases
  • A47J36/2455 - with a burner

• US Classifications

  • 126 - Stoves and furnaces