CPC Subgroup
G21K 1/08 Deviation, concentration or focusing of the beam by electric or magnetic means (electron-optical arrangements in electric discharge tubes H01J29/46; )
Full Title
Arrangements for handling particles or ionising radiation, e.g. focusing or moderating > Deviation, concentration or focusing of the beam by electric or magnetic means (electron-optical arrangements in electric discharge tubes H01J29/46; )
2 direct subcodes
Child Classifications
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- G21K 1/087 by electrical means
- G21K 1/093 by magnetic means