DIFF Subgroup
G03G 21/16 Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
Introduced: January 1995
Full Title
Full titles differ between systems:
IPC:
Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge > Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
CPC:
Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge > Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
CPC subdivides this area 4x more granularly than IPC with 3 additional codes.
3 codes are CPC-only extensions.
IPC defines codes here since 1995.
Child Classifications
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