3380335

Information

• Patent Grant
• 3380335

• References
• Source

• Patent Number

  3,380,335

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1968
  56 years ago

• CPC

  • G21F7/02 - Observation devices permitting vision but shielding the observer
  • G02B23/2407 - Optical details

• US Classifications

  • 356 - Optics: measuring and testing
  • 359 - Optical: systems and elements
  • 976 - Nuclear technology