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Investigating or analysing materials by the use of wave or particle radiation not covered by group G 01 N 21/00 or G 01 N 22/00, e.g. X-rays, neutrons (G 01 N 3/00 to
G 01 N 17/00 take precedence; measuring stress in general G 01 L 1/00; measurement of nuclear or X-radiation G 01 T; introducing objects or materials into nuclear reactors, or removing them therefrom, or storing them after treatment therein G 21 C; construction or operation of X-ray apparatus or circuits therefor H 05 G) |
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