CPC Subgroup
G01D 15/02 Styli or other recording elements acting to mechanically deform or perforate the recording surface (printing recording elements G01D15/20)
Full Title
Component parts of recorders for measuring arrangements not specially adapted for a specific variable > Styli or other recording elements acting to mechanically deform or perforate the recording surface (printing recording elements G01D15/20)
1 direct subcode
Child Classifications
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- G01D 15/04 acting to punch holes in the recording surface