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PCE
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DIFF Subgroup
G01P 3/24

by using friction effects (G01P3/06 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: by using friction effects

CPC: by using friction effects (G01P3/06 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Measuring linear or angular speed; Measuring differences of linear or angular speeds > Devices characterised by the use of mechanical means > by using friction effects

CPC:

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 use of mechanical means > by using friction effects (G01P3/06 takes precedence)

No child classifications to compare. This is a leaf node in both IPC and CPC.