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Number: 976/DIG.414
Name: Nuclear technology > Arrangements for obtraining electrical energy from radioactive sources (e.g., from radioactive isotopes, nuclear or atomic batteries) [g21h-1/00] *** (fusion reactors dig. 1+; nuclear reactors dig. 5+) > Cells in which radiation ionizes a gas in the presence of a junction of two dissimilar metals (i.e., contact potential difference cells) [g21h-1/08] *** (discharge tubes h01j)
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