1637651

Information

• Patent Grant
• 1637651

• References
• Source

• Patent Number

  1,637,651

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1927
  97 years ago

• CPC

  • F22G7/02 - in fire tubes

• US Classifications

  • 122 - Liquid heaters and vaporizers