CPC Main Group
B32B 29/00 Layered products comprising paper or cardboard
5 direct subcodes
Child Classifications
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- B32B 29/02 next to a fibrous or filamentary layer
- B32B 29/04 next to a particulate layer
- B32B 29/06 specially treated, e.g. surfaced, parchmentised
- B32B 29/08 Corrugated paper or cardboard