1480912

Information

• Patent Grant
• 1480912

• References
• Source

• Patent Number

  1,480,912

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1924
  100 years ago

• CPC

  • F22D1/04 - the tubes having plain outer surfaces

• US Classifications

  • 122 - Liquid heaters and vaporizers