1379409

Information

• Patent Grant
• 1379409

• References
• Source

• Patent Number

  1,379,409

• Date Filed

  Not available

• Date Issued

  Tuesday, May 24, 1921
  104 years ago

• CPC

  • F22G3/004 - Steam tubes with steam flowing in opposite directions in one pipe

• US Classifications

  • 122 - Liquid heaters and vaporizers