1916686

Information

• Patent Grant
• 1916686

• References
• Source

• Patent Number

  1,916,686

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1933
  92 years ago

• CPC

  • E21B33/138 - Plastering the borehole wall Injecting into the formations
  • E21D5/11 - with combinations of different materials

• US Classifications

  • 166 - Wells