1779794

Information

• Patent Grant
• 1779794

• References
• Source

• Patent Number

  1,779,794

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1930
  94 years ago

• CPC

  • H01J29/462 - arrangements for interrupting the beam during inoperative periods

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices
  • 324 - Electricity: measuring and testing
  • 347 - Incremental printing of symbolic information