3914637

Information

• Patent Grant
• 3914637

• References
• Source

• Patent Number

  3,914,637

• Date Filed

  Not available

• Date Issued

  Tuesday, October 21, 1975
  49 years ago

• CPC

  • H01J29/58 - Arrangements for focusing or reflecting ray or beam

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 250 - Radiant energy