3468774

Information

• Patent Grant
• 3468774

• References
• Source

• Patent Number

  3,468,774

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1969
  55 years ago

• CPC

  • C25F1/08 - Refractory metals
  • C25D11/14 - Producing integrally coloured layers

• US Classifications

  • 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
  • 216 - Etching a substrate: processes
  • 252 - Compositions