2225775

Information

• Patent Grant
• 2225775

• References
• Source

• Patent Number

  2,225,775

• Date Filed

  Not available

• Date Issued

  Tuesday, December 24, 1940
  84 years ago

• CPC

  • E21B36/025 - the burners being above ground or outside the bore hole

• US Classifications

  • 432 - Heating
  • 060 - Power plants
  • 126 - Stoves and furnaces
  • 166 - Wells