1903113

Information

• Patent Grant
• 1903113

• References
• Source

• Patent Number

  1,903,113

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1933
  92 years ago

• CPC

  • H01J31/265 - with light spot scanning

• US Classifications

  • 348 - Television
  • 313 - Electric lamp and discharge devices