| 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 103 | | .~.~ Means for preventing undesired asymmetric expansion of the complete structure (e.g., stretching devices, pins) [G21C-5/08] |