1071282

Information

• Patent Grant
• 1071282

• References
• Source

• Patent Number

  1,071,282

• Date Filed

  Not available

• Date Issued

  Tuesday, August 26, 1913
  111 years ago

• CPC

  • E21B10/42 - Rotary drag type drill bits with teeth, blades or like cutting elements
  • Y10T279/17982 - Molded or cast-in tang

• US Classifications

  • 279 - Chucks or sockets