2420377

Information

• Patent Grant
• 2420377

• References
• Source

• Patent Number

  2,420,377

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1947
  77 years ago

• CPC

  • C25D5/52 - by brightening or burnishing

• US Classifications

  • 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
  • 204 - Chemistry: electrical and wave energy
  • 266 - Metallurgical apparatus
  • 432 - Heating