2550328

Information

• Patent Grant
• 2550328

• References
• Source

• Patent Number

  2,550,328

• Date Filed

  Not available

• Date Issued

  Tuesday, April 24, 1951
  73 years ago

• CPC

  • C23C22/67 - with solutions containing hexavalent chromium

• US Classifications

  • 148 - Metal treatment