860219

Information

• Patent Grant
• 860219

• References
• Source

• Patent Number

  860,219

• Date Filed

  Not available

• Date Issued

  Tuesday, July 16, 1907
  117 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
  • 030 - Cutlery