| 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 50 | DD | .~.~.~ Details of the construction within the casing [G21C-3/16] {3} |
| DIG 53 | | .~.~.~.~ With coating on fuel or on inside of casing; with nonactive interlayer between casing and active material; with multiple casings or multiple active layers [G21C-3/20] |