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Patent classifications
G
PHYSICS
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G21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
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G21C
NUCLEAR REACTORS
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3/00
Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
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G21C3/02
Fuel elements
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G21C3/04
Constructional details
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G21C3/16
Details of the construction within the casing
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G21C3/18
Internal spacers or other non-active material within the casing, e.g. compensating for expansion of fuel rods or for compensating excess reactivity
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