3595643

Information

• Patent Grant
• 3595643

• References
• Source

• Patent Number

  3,595,643

• Date Filed

  Not available

• Date Issued

  Tuesday, July 27, 1971
  53 years ago

• CPC

  • B26B21/54 - Razor-blades
  • B21D53/645 - safety razor blades
  • B26B21/26 - of the continuous ribbon type
  • B26B21/58 - characterised by the material
  • C21D8/0205 - of ferrous alloys
  • C21D9/18 - for knives, scythes, scissors, or like hand cutting tools
  • C22C38/18 - containing chromium
  • C22C38/22 - with molybdenum or tungsten
  • C21D1/18 - Hardening Quenching with or without subsequent tempering
  • C21D6/04 - Hardening by cooling below 0 degrees Celsius
  • C21D8/0273 - Final recrystallisation annealing
  • C21D2211/008 - Martensite

• US Classifications

  • 420 - Alloys or metallic compositions