US PATENT SUBCLASS 976 / DIG 364
.~.~ Glove-box atmosphere, temperature or pressure control devices [G21F-7/04D] *** (in general DIG. 358)

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976 /   HD   NUCLEAR TECHNOLOGY

DIG 355  DD  SHIELDED CELLS OR ROOMS [G21F-7/00] {5}
DIG 361  DD  .~ Shielded glove-boxes [G21F-7/04] {5}
DIG 364.~.~ Glove-box atmosphere, temperature or pressure control devices [G21F-7/04D] *** (in general DIG. 358)