1803276

Information

• Patent Grant
• 1803276

• References
• Source

• Patent Number

  1,803,276

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1931
  93 years ago

• CPC

  • C22C29/04 - based on carbonitrides
  • Y10S76/02 - Case hardening
  • Y10S76/11 - Tungsten and tungsten carbide
  • Y10T407/27 - comprising tool of specific chemical composition

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 075 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
  • 076 - Metal tools and implements, making
  • 407 - Cutters, for shaping
  • 420 - Alloys or metallic compositions