3485548

Information

• Patent Grant
• 3485548

• References
• Source

• Patent Number

  3,485,548

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1969
  55 years ago

• CPC

  • G21F7/02 - Observation devices permitting vision but shielding the observer
  • G02B23/2415 - Stereoscopic endoscopes

• US Classifications

  • 359 - Optical: systems and elements
  • 976 - Nuclear technology