1363520

Information

• Patent Grant
• 1363520

• References
• Source

• Patent Number

  1,363,520

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1920
  103 years ago

• CPC

  • F22G7/02 - in fire tubes

• US Classifications

  • 248 - Supports
  • 122 - Liquid heaters and vaporizers