1621505

Information

• Patent Grant
• 1621505

• References
• Source

• Patent Number

  1,621,505

• Date Filed

  Not available

• Date Issued

  Tuesday, March 22, 1927
  98 years ago

• CPC

  • F22B1/12 - produced by an indirect cyclic process
  • F22B37/226 - Protection of drums against combustion

• US Classifications

  • 122 - Liquid heaters and vaporizers