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PCE
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DIFF Subgroup
B21D 19/06

working inwardly

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Flanging or other edge treatment, e.g. of tubes > by continuously-acting tools moving along the edge > shaped as rollers > working inwardly

CPC:

Flanging or other edge treatment, e.g. of tubes (connecting by making use of folds B21D39/00; flaring-out tube ends B21D41/02) > by continuously-acting tools moving along the edge (edge-curling B21D19/12) > shaped as rollers > working inwardly

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