3806636

Information

• Patent Grant
• 3806636

• References
• Source

• Patent Number

  3,806,636

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1974
  50 years ago

• CPC

  • H01J31/24 - with screen acting as light valve by shutter operation

• US Classifications

  • 348 - Television