| 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 265 | DD | .~ Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core [G21C-19/28] *** (pumping coolant DIG. 199+ and 294) {1} |
| DIG 266 | DD | .~.~ With continuous purification of circulating fluent material (e.g., by extraction of fission products, deterioration or corrosion products, impurities (e.g., by cold traps) [G21C-19/30] *** (purification of circulating fluid fuels DIG. 281; separation in general B01D) {3} |
| DIG 268 | | .~.~.~ Specially adapted for liquids [G21C-19/30D] *** (decontamination of liquids DIG. 379) {1} |
| DIG 269 | DD | .~.~.~.~> For molten metals [G21C-19/30D2] {1} |