1647021

Information

• Patent Grant
• 1647021

• References
• Source

• Patent Number

  1,647,021

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1927
  97 years ago

• CPC

  • C25D21/11 - Use of protective surface layers on electrolytic baths

• US Classifications

  • 429 - Chemistry: electrical current producing apparatus, product, and process