Cores; Mandrels

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Moulds; Cores; Mandrels > Cores; Mandrels

CPC:

Moulds; Cores; Mandrels (specially adapted for the production of the tubular articles B28B21/00; ) > Cores; Mandrels

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

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B28B 7/285 CPC only CPC only
B28B 7/30 adjustable, collapsible, or expanding +2 CPC IPC+CPC Available in IPC and CPC