CPC Subgroup B29C 66/84 12 direct subcodes Child Classifications Navigate with arrow keys, Enter to open B29C 66/841 B29C 66/843 B29C 66/845 B29C 66/847 B29C 66/849 B29C 66/851 B29C 66/853 B29C 66/855 B29C 66/857 B29C 66/861 B29C 66/863 B29C 66/865