CPC Subgroup
B21H 7/18 grooved pins; Rolling grooves, e.g. oil grooves, in articles
Full Title
Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons (nails, pins B21G3/30) > grooved pins; Rolling grooves, e.g. oil grooves, in articles
2 direct subcodes
Child Classifications
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