US PATENT SUBCLASS 976 / DIG 82
.~.~ Assemblies of plate-shaped fuel elements or coaxial tubes [G21C-3/36]


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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 58  DD  .~ Assemblies of number of fuel elements in the form of a rigid unit [G21C-3/30] {2}
DIG 82.~.~ Assemblies of plate-shaped fuel elements or coaxial tubes [G21C-3/36]