3679499

Information

• Patent Grant
• 3679499

• References
• Source

• Patent Number

  3,679,499

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1972
  52 years ago

• CPC

  • H01J9/144 - Mask treatment related to the process of dot deposition during manufacture of luminescent screen
  • C23F1/02 - Local etching

• US Classifications

  • 216 - Etching a substrate: processes