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H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
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2237/00
Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
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H01J2237/20
Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
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H01J2237/201
for mounting multiple objects
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