921486

Information

• Patent Grant
• 921486

• References
• Source

• Patent Number

  921,486

• Date Filed

  Not available

• Date Issued

  Tuesday, May 11, 1909
  116 years ago

• CPC

  • F22B37/226 - Protection of drums against combustion

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 110 - Furnaces