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PCE
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DIFF Subgroup
H01J 37/20

Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof > Details > Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support

CPC:

Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof (H01J33/00, H01J40/00, H01J41/00, H01J47/00, H01J49/00 take precedence) > Details > Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support

No child classifications to compare. This is a leaf node in both IPC and CPC.