3202216

Information

• Patent Grant
• 3202216

• References
• Source

• Patent Number

  3,202,216

• Date Filed

  Not available

• Date Issued

  Tuesday, August 24, 1965
  59 years ago

• CPC

  • E21B33/037 - Protective housing therefor
  • B63C11/38 - with entrance above water surface
  • E21B7/12 - Underwater drilling

• US Classifications

  • 166 - Wells