407726

Information

• Patent Grant
• 407726

• References
• Source

• Patent Number

  407,726

• Date Filed

  Not available

• Date Issued

  Tuesday, July 23, 1889
  135 years ago

• CPC

  • F22B33/12 - Self-contained steam boilers

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 237 - Heating systems