| 976 / | HD | NUCLEAR TECHNOLOGY |
| DIG 37 | DD | REACTOR FUEL ELEMENTS AND THEIR ASSEMBLIES; SELECTION OF SUBSTANCES FOR USE AS REACTOR FUEL ELEMENTS [G21C-3/00] {5} |
| DIG 38 | DD | .~ Fuel elements [G21C-3/02] *** (manufacturing DIG. 283) {5} |
| DIG 39 | DD | .~.~ Constructional details [G21C-3/04] {5} |
| DIG 43 | DD | .~.~.~ Casings; Jackets; Jacket materials [G21C-3/06] {5} |
| DIG 49 | | .~.~.~.~ Means forming part of the element for inserting it into, or removing it from, the core; Means for coupling adjacent elements (e.g., to form a stringer) [G21C-3/14] |