CPC Subgroup
B28B 7/16 Moulds for making shaped articles with cavities or holes open to the surface
Full Title
Moulds; Cores; Mandrels (specially adapted for the production of the tubular articles B28B21/00; ) > Moulds for making shaped articles with cavities or holes open to the surface
5 direct subcodes
Child Classifications
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- B28B 7/18 the holes passing completely through the article