3815193

Information

• Patent Grant
• 3815193

• References
• Source

• Patent Number

  3,815,193

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1974
  51 years ago

• CPC

  • E21B37/02 - Scrapers specially adapted therefor
  • Y10T407/1642 - Annular tool
  • Y10T407/1671 - Plural tooth groups
  • Y10T407/24 - with chip breaker, guide or deflector

• US Classifications

  • 407 - Cutters, for shaping