DIFF Subgroup
E21C 25/28 Chains or chain guides
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam > Machines slitting solely by one or more cutter chains moving unidirectionally along jibs > Chains or chain guides
CPC:
Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C27/02, E21C27/10, E21C27/18) > Machines slitting solely by one or more cutter chains moving unidirectionally along jibs > Chains or chain guides
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
Child Classifications
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