CPC Subgroup
G01P 3/66 using electric or magnetic means (G01P3/80 takes precedence; measuring short time intervals G04F8/00, G04F10/00)
Full Title
Measuring linear or angular speed; Measuring differences of linear or angular speeds (G01P5/00 - G01P11/00 take precedence; ; counting mechanisms G06M) > Devices characterised by the determination of the time taken to traverse a fixed distance > using electric or magnetic means (G01P3/80 takes precedence; measuring short time intervals G04F8/00, G04F10/00)
1 direct subcode
Child Classifications
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