2311623

Information

• Patent Grant
• 2311623

• References
• Source

• Patent Number

  2,311,623

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1943
  81 years ago

• CPC

  • C23C22/67 - with solutions containing hexavalent chromium

• US Classifications

  • 216 - Etching a substrate: processes
  • 148 - Metal treatment
  • 206 - Special receptacle or package
  • 228 - Metal fusion bonding
  • 252 - Compositions