1831549

Information

• Patent Grant
• 1831549

• References
• Source

• Patent Number

  1,831,549

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1931
  93 years ago

• CPC

  • F22B33/08 - of boilers of water tube type with boilers of fire-tube type

• US Classifications

  • 122 - Liquid heaters and vaporizers