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IPC Subgroup
B21K 21/04

Shaping thin-walled hollow articles, e.g. cartridges

Introduced: September 1968

Last revised: January 2006

Full Title

Making hollow articles not covered by any single one of groups > Shaping thin-walled hollow articles, e.g. cartridges

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
Subclass:
MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS