1917664

Information

• Patent Grant
• 1917664

• References
• Source

• Patent Number

  1,917,664

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1933
  91 years ago

• CPC

  • F22B25/00 - Water-tube boilers built-up from sets of water tubes with internally-arranged flue tubes, or fire tubes, extending through the water tubes

• US Classifications

  • 122 - Liquid heaters and vaporizers