DIFF Subgroup
B21C 47/28 Drums or other coil-holders
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only > Drums or other coil-holders
CPC:
Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only (coiling wire into particular forms B21F3/00) > Drums or other coil-holders
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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