US PATENT SUBCLASS 976 / DIG 165
.~.~ Consisting of a stagnant or a circulating fluid [G21C-11/08F]


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976 /   HD   NUCLEAR TECHNOLOGY

DIG 152  DD  SHEILDING STRUCTURALLY ASSOCIATED WITH THE REACTOR [G21C-11/00] {3}
DIG 160  DD  .~ Thermal shields; Thermal linings (i.e., for dissipating heat from gamma radiation which would otherwise heat an outer biological shield); Thermal insulation [G21C-11/08] {4}
DIG 165.~.~ Consisting of a stagnant or a circulating fluid [G21C-11/08F]