1805072

Information

• Patent Grant
• 1805072

• References
• Source

• Patent Number

  1,805,072

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1931
  93 years ago

• CPC

  • F22B13/12 - the auxiliary water tubes lining the fire-box

• US Classifications

  • 122 - Liquid heaters and vaporizers