1772866

Information

• Patent Grant
• 1772866

• References
• Source

• Patent Number

  1,772,866

• Date Filed

  Not available

• Date Issued

  Tuesday, August 12, 1930
  94 years ago

• CPC

  • C23C8/26 - of ferrous surfaces
  • C23C8/50 - of ferrous surfaces
  • C23C8/62 - only one element being applied
  • Y10S76/02 - Case hardening
  • Y10T407/27 - comprising tool of specific chemical composition

• US Classifications

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