| 976 / | HD | NUCLEAR TECHNOLOGY |
| DIG 244 | DD | ARRANGEMENTS FOR TREATING, FOR HANDLING, OR FOR FACILITATING THE HANDLING OF, FUEL OR OTHER MATERIALS WHICH ARE USED WITHIN THE REACTOR (e.g., within its pressure vessel) [G21C-19/00] {11} |
| DIG 277 | DD | .~ Reprocessing of irradiated fuel [G21C-19/42] {2} |
| DIG 281 | | .~.~ Of irradiated fuel; also the regeneration of the fuels while the reactor is in operation [G21C-19/50] |