CPC Subgroup
B21H 3/06 Making by means of profiled members other than rolls, e.g. jaws, moved longitudinally or curvilinearly with respect to each other
Full Title
Making helical bodies or bodies having parts of helical shape (helical gears B21H5/00; forming tubes or tube walls into helical shape B21D11/06, B21D15/04) > external screw-threads > Making by means of profiled members other than rolls, e.g. jaws, moved longitudinally or curvilinearly with respect to each other
1 direct subcode
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