3643217

Information

• Patent Grant
• 3643217

• References
• Source

• Patent Number

  3,643,217

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1972
  53 years ago

• CPC

  • H05B37/029 - a plurality of lamps following a preassigned sequence
  • G03B23/18 - with fade-in and fade-out effects
  • G05B19/16 - using magnetic record carriers

• US Classifications

  • 340 - Communications: electrical
  • 352 - Optics: motion pictures
  • 360 - Dynamic magnetic information storage or retrieval
  • 369 - Dynamic information storage or retrieval