3447434

Information

• Patent Grant
• 3447434

• References
• Source

• Patent Number

  3,447,434

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1969
  55 years ago

• CPC

  • G21F7/02 - Observation devices permitting vision but shielding the observer
  • G02B23/2484 - Arrangements in relation to a camera or imaging device
  • G03B15/00 - Special procedures for taking photographs Apparatus therefor
  • G03B37/005 - Photographing internal surfaces
  • G21C17/08 - Structural combination of reactor core or moderator structure with viewing means

• US Classifications

  • 396 - Photography