1903515

Information

• Patent Grant
• 1903515

• References
• Source

• Patent Number

  1,903,515

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1933
  91 years ago

• CPC

  • F22B29/02 - of forced-circulation type
  • F22B37/145 - Flag-shaped panels built-up from tubes

• US Classifications

  • 122 - Liquid heaters and vaporizers