3821748

Information

• Patent Grant
• 3821748

• References
• Source

• Patent Number

  3,821,748

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • H01J11/00 - Gas-filled discharge tubes with alternating current induction of the discharge
  • G03G5/024 - Photoelectret layers
  • G03G15/04 - for exposing
  • G03G15/056 - using internal polarisation

• US Classifications

  • 347 - Incremental printing of symbolic information
  • 313 - Electric lamp and discharge devices
  • 365 - Static information storage and retrieval