CPC Subgroup
B26B 21/42 for cutting hair of preselected or variable length (combs, stencils or guides specially adapted for hair trimming devices A45D24/36)
Full Title
Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor > Details or accessories > for cutting hair of preselected or variable length (combs, stencils or guides specially adapted for hair trimming devices A45D24/36)