1989127

Information

• Patent Grant
• 1989127

• References
• Source

• Patent Number

  1,989,127

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1935
  90 years ago

• CPC

  • F22G7/08 - in fire-boxes

• US Classifications

  • 122 - Liquid heaters and vaporizers