976 / | HD | NUCLEAR TECHNOLOGY |
DIG 355 | DD | SHIELDED CELLS OR ROOMS [G21F-7/00] {5} |
DIG 356 | DD | .~ Shielded passages through walls; Locks; Transferring devices between rooms [G21F-7/00B] *** (between glove-boxes DIG. 362) {1} |
DIG 357 | .~.~ Transferring by fluidic means [G21F-7/00B2] |