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PCE
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DIFF Subgroup
B21G 1/04

of needles specially adapted for use in machines or tools

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Making needles used for performing operations > of needles with eyes, e.g. sewing-needles, sewing-awls > of needles specially adapted for use in machines or tools

CPC:

Making needles used for performing operations (forming heads on pin-like needles B21G3/12; making U-shaped hairpins B21G7/04) > of needles with eyes, e.g. sewing-needles, sewing-awls > of needles specially adapted for use in machines or tools

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