1787831

Information

• Patent Grant
• 1787831

• References
• Source

• Patent Number

  1,787,831

• Date Filed

  Not available

• Date Issued

  Tuesday, January 6, 1931
  94 years ago

• CPC

  • E21B17/046 - with ribs, pins or jaws, and complementary grooves or the like
  • Y10T403/15 - Closure or plug spaced from joint

• US Classifications

  • 403 - Joints and connections