1736920

Information

• Patent Grant
• 1736920

• References
• Source

• Patent Number

  1,736,920

• Date Filed

  Not available

• Date Issued

  Tuesday, November 26, 1929
  95 years ago

• CPC

  • C23C8/00 - Solid state diffusion of only non-metal elements into metallic material surfaces Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating
  • C23C8/26 - of ferrous surfaces
  • Y10S76/02 - Case hardening
  • Y10T407/27 - comprising tool of specific chemical composition

• US Classifications

  • 148 - Metal treatment
  • 030 - Cutlery
  • 076 - Metal tools and implements, making
  • 407 - Cutters, for shaping