1800961

Information

• Patent Grant
• 1800961

• References
• Source

• Patent Number

  1,800,961

• Date Filed

  Not available

• Date Issued

  Tuesday, April 14, 1931
  93 years ago

• CPC

  • F22B33/04 - of boilers of furnace-tube type with boilers of water-tube type

• US Classifications

  • 122 - Liquid heaters and vaporizers