Devices Or Arrangements For Monitoring Or Testing Fuel Or Fuel Elements (e.g., For Burn-up, For Contamination, For Leak-tightness) Not During Reactor Operation [g21c-17/06] *** (dig. 235, Dig. 236 Take Precedence) (detection Of Leaking Fuel Elements During Reactor Operation Dig. 224) Patents (Class 976/DIG231)