2368511

Information

• Patent Grant
• 2368511

• References
• Source

• Patent Number

  2,368,511

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1945
  79 years ago

• CPC

  • E21B19/24 - Guiding or centralising devices for drilling rods or pipes
  • B23B47/28 - Drill jigs for workpieces
  • B23B2247/04 - Jigs using one or more holes as datums for drilling further holes
  • B23B2247/08 - Jigs for drilling overlapping or interfering holes

• US Classifications

  • 175 - Boring or penetrating the earth