DIFF Subgroup
E04G 15/06 for cavities or channels in walls of floors, e.g. for making chimneys
Introduced: September 1968
Title
Titles differ between systems:
IPC: for cavities or channels in walls or floors, e.g. for making chimneys
CPC: for cavities or channels in walls of floors, e.g. for making chimneys
Full Title
Full titles differ between systems:
IPC:
Forms or shutterings for making openings, cavities, slits, or channels > for cavities or channels in walls or floors, e.g. for making chimneys
CPC:
Forms or shutterings for making openings, cavities, slits, or channels (forming part of shuttering for walls E04G11/06 ) > for cavities or channels in walls of floors, e.g. for making chimneys
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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