| 976 / | HD | NUCLEAR TECHNOLOGY |
| DIG 99 | DD | MODERATOR OR CORE STRUCTURE; SELECTION OF MATERIALS FOR USE AS MODERATOR [G21C-5/00] {4} |
| DIG 100 | DD | .~ Details [G21C-5/02] {4} |
| DIG 102 | | .~.~ Means for locating or supporting fuel elements [G21C-5/06] *** (means forming part of the element DIG. 48) |