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PCE
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DIFF 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; )

Introduced: July 1974

Title

Titles differ between systems:

IPC: Deviation, concentration, or focusing of the beam by electric or magnetic means

CPC: Deviation, concentration or focusing of the beam by electric or magnetic means (electron-optical arrangements in electric discharge tubes H01J29/46; )

Full Title

Full titles differ between systems:

IPC:

Arrangements for handling particles or ionising radiation, e.g. focusing or moderating > Deviation, concentration, or focusing of the beam by electric or magnetic means

CPC:

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; )

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1985.

Child Classifications

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  • G21K 1/087 by electrical means since 1985 IPC+CPC Available in IPC and CPC
  • G21K 1/093 by magnetic means since 1985 IPC+CPC Available in IPC and CPC