3813227

Information

• Patent Grant
• 3813227

• References
• Source

• Patent Number

  3,813,227

• Date Filed

  Not available

• Date Issued

  Tuesday, May 28, 1974
  50 years ago

• CPC

  • G04B37/221 - Wear resistant cases
  • C22C29/16 - based on nitrides
  • Y10S428/927 - Decorative informative

• US Classifications

  • 075 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
  • 419 - Powder metallurgy processes
  • 428 - Stock material or miscellaneous articles
  • 968 - Horology